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BAR 2009 Technician Update Training Course Smog Check Failure Diagnostics
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Smog Check Failure Diagnostic Module Training Objectives – Relevance & Importance of Smog Check Failure Diagnostics – Diagnostic Skills – Critical Thinking Skills
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Relevance & Importance of Smog Check Failure Diagnostics
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BAR Field Studies Quality Assurance Gold Shield Clean Car
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Smog Check Program Evaluation Program Evaluation – The ability of a vehicle to pass a smog inspection after certification – BAR Roadside Smog Check Failure Rate is 40+% 6 months after “successful” smog check repairs – Based on Roadside Data
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BAR Technician Training Surveys Technicians – “What additional training do you feel would have benefited you in your job performance? “ #1 Response – Additional Training in Step- by-Step Smog Check Failure Diagnostics
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BAR Technician Training Surveys Clean Air Car Course Instructors – 57.1% responded that the time spent on emission-related diagnostic procedures should be significantly increased
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Laws & Regulations Health & Safety Code (H&S) – 44016 California Code of Regulations (CC&R) – 3340.41(d) – The specifications and procedures required by Section 44016 of the Health and Safety Code shall be the vehicle manufacturers recommended procedures for emission problem diagnosis and repair or the emission diagnosis and repair procedures found in industry-standard reference manuals and periodicals published by nationally recognized repair information providers. Smog check stations and smog check technicians shall, at a minimum, follow the applicable specifications and procedures when diagnosing defects or performing repairs for vehicles that fail a smog check test.
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Fuel Costs Most Smog Check failure repairs will positively influence a vehicle’s fuel economy, performance and durability
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Did You Know? California’s current vehicle-dependent lifestyle has led to a dramatic increase in health risks – California has more registered cars than any other state – 95 percent of all Californians breathe in dangerous levels of smog on a regular basis – Every year, more people die from air quality- related health issues than car accidents
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Did You Know? California’s current vehicle-dependent lifestyle has led to a dramatic increase in health risks – 50 percent of all California’s motor vehicle pollution is produced by only 10 - 15 percent of the state’s total number of cars driven – A poorly maintained or malfunctioning vehicle can release as much as 10 times the emissions of a well maintained vehicle
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Summary BAR Field Studies + Smog Check Program Evaluations + Training Survey Responses + Laws & Regulations + Fuel Costs + Public Health = Opportunities to Improve Smog Check Repair Effectiveness
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2009 Update Training Diagnostic Module Diagnostic Skills – HC – CO – NO x – OBD II Critical Thinking Skills – Diagnostic Data – Cohesive/Effective Repair Strategy
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HC Diagnosis
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HC Feedback Diagnosis (OBD I)
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CO Diagnosis
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CO Feedback Diagnosis (OBD I)
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NO x Diagnosis
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OBD II
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HC Diagnostics
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HC Diagnosis
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HC Diagnostics Base & Timing Advance – Where applicable Timing Light, Magnetic Timing Device, Tachometer, Timing Procedures & Specifications
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HC Diagnostics Vacuum Gauge / Vacuum Waveform Relative Compression Test – Cylinder Balance – Cranking Tests Compression Tests
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Vacuum Gauge Showing 18” @ Idle
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HC Diagnostics
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1993 Mitsubishi Mirage 1.5L MAP Sensor (MD178243) 5 V reference voltage input Signal output to scope Ground --- -- -
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HC Diagnostics
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Secondary/Primary Ignition Waveform Analysis – Firing Line Amplitude – Firing Line – Spark Line Junction – Spark Line Duration & Slope – Coil / Condenser Oscillations – Ignition Switching
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HC Diagnostics Secondary/Primary Ignition Waveform Analysis – Firing Line Amplitude – Firing Line – Spark Line Junction – Spark Line Duration & Slope – Coil / Condenser Oscillations – Ignition Switching
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HC Diagnostics Visual Inspection Vacuum Leak Detection Smoke Machine Lambda Calculator Secondary Ignition Analysis
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Lean Misfire Lambda Calculator Video Clip Click Calculate to Start Demo
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HC Diagnostics
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Liquid Fuel Does Not Burn, Only Vaporized Fuel Burns
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HC Diagnostics AIR Operation Description & Routing Diagram AIR Operating Pressure 4/5 Gas Analyzer
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HC Diagnostics Catalyst Operation & Efficiency is Dependent Upon Upstream Operation Under All Driving Conditions
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HC Feedback Diagnosis (OBD I)
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HC Diagnostics OBD I HC Feedback Diagnosis Builds On To HC Non-Feedback Diagnosis Includes DTCs & O 2 S Performance and Signature
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HC Diagnostics OBD I
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Oxygen Sensor Test – Light Off O 2 S – Artificially Manipulate Full Rich (propane) – Artificially Manipulate Full Lean – Snap Throttle
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HC Diagnostics OBD I Passing Results – Minimum Voltage (Artificially Full Lean) 0V – 175mV – Maximum Voltage (Artificially Full Rich) 800mV – 1V – Rise Time (Snap Throttle) < / = 100mS (from 175mV – 800mV)
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Normal O 2 Pattern
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Propane Enriched
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Enrichment DiscontinuedSnap Throttle
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RPM O2S STFT IPW TPS MAF Artificial Enrichment & Throttle Snap
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Time Measurement
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1.67s
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Max to Min Voltage
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Rise Time.175-.8v
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Start cursor higher than.175v
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Drop down to.175v
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Start below.800V
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Increase to 800mv
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Being off just a little can affect your results
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Error factor exists due to the 5ms “steps” of the cursors as they move ( +/- 4ms each) final reading could vary by 8ms total
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8 graticules VOLTAGE 10 graticules TIME Some DSO’s have grid divisions called Graticules Graticule
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200mv per graticule
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500ms per graticule
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200mv X 500ms graticule
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Each division = 50mV Each division =100ms This graticule is divided into 4 X 5 segments
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= 50mV set lower cursor at 175mV Measuring O 2 voltage and rise time using cursors
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= 50mV = 175mV = 800 mV
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= 175mV = 800 mV Fail! Set time cursors to measure rise time
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HC Diagnostics HC Case Scenario Instructor Lead Demonstration – Engine Integrity Verification – Misfire Diagnosis Lab Exercises – Vehicle Information Datasheet
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Case Scenario 1995 Plymouth Neon HC Failure
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’95 Neon HC Failure ASM 2525 ResultHCCOCO2NOO2RPM Fail880.0514.560.51988 Standards HCCOCO2NOO2 Fail590.55774 GP2332.051,770 AVG130.05136
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’95 Neon HC Failure Failed for HC at 25/25 Technician Tested HO 2 S – minimum voltage 104mV – maximum voltage910mV – rise time68mS Technician Tested Catalyst – CO 2 Cranking Test HC9327 ppm CO 2 10.5 %
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’95 Neon HC Failure Based on this diagnostic information, the technician recommended replacing the catalyst to resolve the HC failure. What diagnostic steps could have been performed to more thoroughly address the HC failure?
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Case Scenario 1991 Honda CRX HC Failure
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’91 CRX HC Failure 1991 Honda CRX 4 cylinder, 1.6L engine Failed Smog Check for high HC at 50/15 – Functional tests – PASS – Visual tests – PASS PCV, EVAP, CAT, SPK, FI, HO2S
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’91 CRX HC Failure ASM 5015 ResultHCCOCO2NOO2RPM Fail1670.4014.447460.101827 Standards HCCOCO2NOO2 Fail1340.82847 GP3082.322,070 AVG310.10237
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’91 CRX HC Failure Diagnostics Performed: Technician Tested Engine Integrity – Cylinder balance - #4 showed low contribution – Leakage test - #4 excessive leakage exhaust DTC’s - none TSB’s – State I/M failure due to improper warm-up procedures – not applicable in this case
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’91 CRX HC Failure Continued Technician Tested HO 2 S – minimum voltage200mV – maximum voltage810mV – rise time371mS
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’91 CRX HC Failure Based on this diagnostic information, the technician recommended adjusting the valves and replacing the HO 2 S. Repairs were authorized and performed.
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’91 CRX HC Failure The after-repairs inspection showed the following emissions readings:
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’91 CRX HC Failure The after-repairs inspection showed the following emissions readings: ASM 5015 ResultHCCOCO2NOO2RPM PASS950.1515.008440.101857 Standards HCCOCO2NOO2 Fail1340.82847 GP3082.322,070 AVG310.10237
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’91 CRX HC Failure What diagnostic steps could have been performed to more thoroughly address the HC failure?
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CO Diagnostics
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CO Diagnosis
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CO Diagnostics
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EVAP – Saturated Canister – Improper Purge Valve Operation Crankcase – Improper PCV Valve Operation – Engine Oil Contaminated With Fuel
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CO Diagnostics Float Level Choke Operation Main Metering Power Valve Idle Circuit
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CO Diagnostics Float Level Choke Operation Main Metering Power Valve Idle Circuit
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CO Diagnostics Same As HC Diagnosis
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CO Feedback Diagnosis (OBD I)
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CO Diagnostics CO Feedback Diagnosis Builds On To CO Non-Feedback Diagnosis Includes DTCs & O 2 S Performance and Signature
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CO Diagnostics
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Oxygen Sensor Test – Light Off O 2 S – Artificially Manipulate Full Rich (propane) – Artificially Manipulate Full Lean – Snap Throttle
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CO Diagnostics Passing Results – Minimum Voltage (Artificially Full Lean) 0V – 175mV – Maximum Voltage (Artificially Full Rich) 800mV – 1V – Rise Time (Snap Throttle) < / = 100mS (from 175mV – 800mV)
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CO Diagnostics Feedback Systems Default to Rich When They Become Non-responsive (limp home mode) Check for the PCM’s Ability to Drive the System Rich or Lean Based on an Opposing Signal Check for the PCM’s Ability to Control Ignition Timing
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CO Diagnostics CO Case Scenario Instructor Lead Demonstration – Intake Air Restrictions – Un-metered Fuel – Fuel Metering – O 2 S Mapping/Average Lab Exercises – Vehicle Information Datasheet
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1991 Acura Integra CO Failure Case Scenario
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’91 Integra CO Failure Failed Smog Check Inspection for: – Excessive CO 50/15 Passed Visual and Functional Tailpipe Readings...
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ASM 5015 ResultHCCOCO2NOO2RPM Fail1210.9914.677101988 Standards HCCOCO2NOO2 Fail1210.76807 GP2962.262,014 AVG310.10237 ’91 Integra CO Failure
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Diagnostic tests performed... – HO2S waveform monitored and found to vary from 100mV to 900mV – Closed loop verified – Catalyst outlet temperature less than inlet temperature – Needs catalyst
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’91 Integra CO Failure Repairs authorized and performed – Catalyst replaced
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’91 Integra CO Failure The vehicle passed and after-repairs Smog Check inspection – The final readings are as follows:
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ASM 5015 ResultHCCOCO2NOO2RPM Pass870.315.251501973 Standards HCCOCO2NOO2 Fail1210.76807 GP2962.262,014 AVG310.10237 ’91 Integra CO Failure
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The vehicle passed and after-repairs Smog Check inspection What diagnostic steps could have been performed to more thoroughly address the failure?
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Case Scenario 1989 Dodge B-150 CO/HC Failure
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’89 B-150 CO/HC Failure 1989 B-150, 6 cylinder, 3.9 L engine Tailpipe – Failed Smog Check for high CO/HC at both 50/15 and 25/25 modes Functional – Failed fuel cap Visual tests – Failed missing AIR pump belt (pump frozen)
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’89 B-150 CO/HC Failure ASM 5015 ResultHCCOCO2NOO2RPM GP63310.787.1210.01395 Standards HCCOCO2NOO2 Fail1240.751,020 GP3112.051,807 AVG340.11260
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’89 B-150 CO/HC Failure ASM 2525 ResultHCCOCO2NOO2RPM GP72410.817.1300.01384 Standards HCCOCO2NOO2 Fail1040.95880 GP2612.251,607 AVG230.10217
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’89 B-150 CO/HC Failure Diagnostics Performed: – EGR – excessive flow off idle. Bad EGR transducer. Affecting engine vacuum. – HO 2 S – fixed at 100mV both at forced rich and lean. PCM responds to artificial signal – MAP and ECT sensor circuits OK – Needs AIR pump and belt – Needs fuel cap
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’89 B-150 CO/HC Failure Based on this diagnostic information, the technician recommended: – Replacing fuel cap; AIR pump and belt; EGR vacuum transducer; and HO 2 S Repairs were authorized and performed.
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’89 B-150 CO/HC Failure The after-repairs inspection showed the following emissions readings:
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’89 B-150 CO/HC Failure The after-repairs inspection showed the following emissions readings: ASM 5015 ResultHCCOCO2NOO2RPM PASS700.5213.34332.21455 Standards HCCOCO2NOO2 Fail1240.751,020 GP3112.051,807 AVG340.11260
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’89 B-150 CO/HC Failure The after-repairs inspection showed the following emissions readings: ASM 2525 ResultHCCOCO2NOO2RPM PASS530.6613.23142.31444 Standards HCCOCO2NOO2 Fail1040.95880 GP2612.251,607 AVG230.10217
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’89 B-150 CO/HC Failure What diagnostic steps could have been performed to more thoroughly address the CO/HC failure?
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Hand out Homework Assignment End of Night One
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NO x Diagnostics
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NO x Diagnosis
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NO x FAILURES Timing EGR A/F Ratio Temperature Pressure Fuel Catalyst
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NO x Diagnostics Base & Timing Advance – Where applicable Timing Light, Magnetic Timing Device, Tachometer, Timing Procedures & Specifications
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IGNITION TIMING Pressure = Heat Two High Pressure Events – Compression – Combustion Separate The Two Events With Time
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Beginning of compression stroke Intake valve closes Base Ignition Timing 10° btdc TDC Compression Max pressure - temperature Max pressure – combustion (16° - 21° atdc) Over advanced base timing (15° btdc) Bottom Dead Center - Power
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TIMING FAILURES Incorrect Base Timing Incorrect Advance Curves – Mechanical / Vacuum – Modules Timing Controls – Knock Sensors
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NO x Diagnostics Vacuum Control & Supply Intake & Exhaust Passages Valve Performance
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EGR SYSTEM OPERATION EGR Reduces Combustion Chamber Temps Reducing Amount of Air Fuel Charge Valve Timing?
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EGR DEFECTS Restricted or Blocked Passageways Vacuum Supply PCM Control Malfunction Mechanical Malfunction Back Pressure Transducer Malfunction Insufficient Exhaust Back Pressure
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NO x Diagnostics Lambda Calculator Gas Analyzer Biased O 2 S Pattern Fuel Trim Data Secondary Ignition Waveform Analysis
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AIR FUEL RATIO Stoichiometric Chart
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STOICHIOMETRIC CHART 14.7:1 O2 CO HC NOx CO2 10:120:1 RICH LEAN
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Case Study September 1993 Mazda Protege 1.8L, Manual Trans, No EGR Failed Smog Check for Timing (FA99), HC & GP NO x
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Initial Failing Inspection (GP) ASM 5015 ResultHCCOCO2NOO2RPM GP2470.4913.820001.21624 Standards HCCOCO2NOO2 Fail920.55716 GP2812.051,961 AVG210.06150
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NO x Case Scenario Lambda Calculator Movie Clip Click Calculate to Start Demo
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Case Study November 1993 Mazda Protege 1.8L, Manual Trans, No EGR Failed its Pre-repair Baseline Inspection at a CAP station for for Timing (FB48), HC & NO x (not in handouts)
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Pre-repair Baseline (GS) ASM 5015 ResultHCCOCO2NOO2RPM Fail1860.4316109511683 Standards HCCOCO2NOO2 Fail920.55716 GP2812.051,961 AVG210.06150
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NO x Case Scenario Lambda Calculator Movie Clip
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Case Study December 1993 Mazda Protege 1.8L, Manual Trans, No EGR Passed & Certified
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Post Repair Certification ASM 5015 ResultHCCOCO2NOO2RPM Pass740.2115.53080.081590 Standards HCCOCO2NOO2 Fail920.55716 GP2812.051,961 AVG210.06150
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NO x Case Scenario Lambda Calculator Movie Clip
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CAUSES OF LEAN MIXTURES Restricted Fuel Flow Fuel Injector Spray Pattern Plugged Injector O2 Sensor Defect Low Fuel Pressures MAF Sensor Malfunction MAP Sensor Malfunction TPS Sensor Malfunction PCM Malfunction
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NO x Diagnostics Cooling System Operation Intake Air Operation Infra-red Digital Pyrometer Temperature Probe Thermometer Scan-tool PIDs
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COOLING SYSTEM NOx Caused By Heat Engine Temperature is Regulated by Cooling System
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COOLING SYSTEM DEFECTS Thermostat not Functioning Properly Coolant Flow Through Radiator Restricted Low Coolant Level
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EARLY FUEL EVAPORATION Liquid Fuel Does Not Burn Assists Vaporization During Cold Engine Operation If EFE Not Disabled After Engine Is Warm – Superheats Manifold and Air Fuel Charge Check – TVS, Temp Sensors, Linkage
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NO x Diagnostics Excessive Pressure Due to Carbon Build-up Unmanaged Ignition Source (timing) Compression gauge, borescope, TSB’s
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NO x Diagnostics Octane Rates Speed of Burn High Octane Fuels Burn Slower Low Octane Fuels Burn Faster Consult Owner’s Manual
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NO x Diagnostics Exhaust Leaks Upstream From Catalyst Sufficient CO (not excessively lean) Physical Damage Efficiency Tests Applies Only To Vehicles Equipped With A Reduction Catalyst!
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NO x Diagnostics NO x Case Scenario Instructor Lead Demonstration – Ignition Timing Advance – Lambda Calculator Lab Exercises – Vehicle Information Datasheet
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1984 Volvo 240 DL NO x Failure Case Scenario
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’84 240 DL NO x Failure 2.3L 4 cylinder engine PCV, TAC, EVAP, CAT, FI, & HO 2 S Failed 50/15 and 25/25 for NO x Passed functional and visual inspections
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’84 240 DL NO x Failure ASM 5015 ResultHCCOCO2NOO2RPM Fail850.0414.617120.51712 Standards HCCOCO2NOO2 Fail1350.831,136 GP3112.332,153 AVG410.13399
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’84 240 DL NO x Failure ASM 25/25 ResultHCCOCO2NOO2RPM Fail650.0214.427320.71754 Standards HCCOCO2NOO2 Fail1100.63966 GP2612.131,953 AVG290.11332
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’84 240 DL NO x Failure Diagnostic Tests Performed... – HO 2 S Signal fixed at 540 mV
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’92 Accord NO x Failure Repairs Authorized and Performed... – Replace HO 2 S
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’92 Accord NO x Failure The vehicle passed and after-repairs Smog Check inspection – The final readings are as follows:
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’84 240 DL NO x Failure ASM 5015 ResultHCCOCO2NOO2RPM Pass1320.2714.611020.51723 Standards HCCOCO2NOO2 Fail1350.831,136 GP3112.332,153 AVG410.13399
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’84 240 DL NO x Failure ASM 25/25 ResultHCCOCO2NOO2RPM Pass570.0414.86620.11762 Standards HCCOCO2NOO2 Fail1100.63966 GP2612.131,953 AVG290.11332
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’84 240 DL NOx Failure What diagnostic steps could have been performed to more thoroughly address the failure?
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1992 Honda Accord NO x Failure Case Scenario
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’92 Accord NO x Failure 2.2L 4 cylinder engine PCV, EVAP, EGR, CAT, SPK, FI, & HO 2 S Failed 50/15 and 25/25 for NO x Passed functional and visual inspections
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’92 Accord NO x Failure ASM 5015 ResultHCCOCO2NOO2RPM Fail650.2514.412200.31836 Standards HCCOCO2NOO2 Fail1160.74791 GP2912.241,992 AVG310.10237
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’92 Accord NO x Failure ASM 25/25 ResultHCCOCO2NOO2RPM Fail980.2214.411860.21907 Standards HCCOCO2NOO2 Fail910.62730 GP2412.121,792 AVG200.09199
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’92 Accord NO x Failure Diagnostic Tests Performed... – Catalyst – failed cranking CO 2 test – EGR – vacuum signal, passages, valve operation – Good – Ignition timing – at specifications – Lambda – within specifications 50/15 and 25/25
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’92 Accord NO x Failure Repairs Authorized and Performed... – Replace catalytic converter
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’92 Accord NO x Failure The vehicle passed an after-repairs Smog Check inspection – The final readings are as follows:
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’92 Accord NO x Failure ASM 5015 ResultHCCOCO2NOO2RPM Pass370.1115.27910.21828 Standards HCCOCO2NOO2 Fail1160.74791 GP2912.241,992 AVG310.10237
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’92 Accord NO x Failure ASM 25/25 ResultHCCOCO2NOO2RPM Pass100.0415.261302531 Standards HCCOCO2NOO2 Fail910.62730 GP2412.121,792 AVG200.09199
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’92 Accord NOx Failure What diagnostic steps could have been performed to more thoroughly address the failure?
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OBD II Diagnostics
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OBD II
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OBD II Diagnostics
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No MIL – No DTC Diagnosis... – Check Pending DTC’s; Mode 6 and Mode 5 Data; Fuel Trim; and Misfire Data
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OBD II Diagnostics Manufacturer’s System Performance Check Comprehensive Drive Cycle – Re-check DTC’s, Mode 6/5 Data
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Critical Thinking Skills Analysis of Diagnostic Data Compare & Contrast What Works? What Doesn’t? What Doesn’t Fit? What’s Missing? What Does the Data Say? What Does It All Mean?
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We will be using these Critical Thinking Skills along with the datasheets on the 3 Case Scenarios during the lab session
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The End
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SMOG CHECK TECHNICIAN’S GUIDE TO USING THE INTERNET By Wayne Brumett
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USING THE INTERNET In recent years, legislation was passed requiring all vehicle manufacturers (mfgs.) to provide aftermarket repair technicians and shops with all the information needed to diagnose and repair their vehicles. Mfgs. were required to make this information available, via the internet, to aftermarket technicians at a nominal fee. Unfortunately, these mfg. websites are being under used by many technicians and shops!
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To successfully diagnose and repair today’s high tech vehicles, YOU NEED TO USE THE INTERNET!! The following slides go over some internet basics as they pertain to smog inspections, vehicle diagnosis, and repairs. For some, this lesson will seem very basic and we ask for your indulgence. For others, it will open up new avenues for inspection, diagnostic, and repair information. USING THE INTERNET
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Q: OK, so how do you get on the internet? A: To access the internet, you need: A computer linked to the internet through a internet service provider.A computer linked to the internet through a internet service provider. Your personal computer (PC) needs a program called an internet browser. Among the common browser programs are: “Internet Explorer”, “Safari” (Apple PCs), “Mozilla”, “Opera”, etc. Your PC probably has one of these programs already installed on it’s hard drive.Your personal computer (PC) needs a program called an internet browser. Among the common browser programs are: “Internet Explorer”, “Safari” (Apple PCs), “Mozilla”, “Opera”, etc. Your PC probably has one of these programs already installed on it’s hard drive. USING THE INTERNET – Getting on the Internet
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Q: The student course syllabus says that I must do an internet homework assignment to pass the course; if I don’t own a PC how can I complete this assignment? A: The following options are available: Most public libraries have PCs that you may use for free! you just need to get a library card. They also have staff that can assist you.Most public libraries have PCs that you may use for free! you just need to get a library card. They also have staff that can assist you. Find an “internet cafe” and pay a small fee to use their PCs.Find an “internet cafe” and pay a small fee to use their PCs. Ask your employer or a friend if they would allow you to use their PC.Ask your employer or a friend if they would allow you to use their PC. USING THE INTERNET – Getting on the Internet
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SO SHOW ME HOW TO GET ON THE INTERNET!
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You have seen it a million times on TV. The announcer says “For more information go to our website”; then you see this funny sentence at the bottom of the screen that starts off with a “www.” and ends with a “.com” and a strange name in between – what does that mean? When a company wants to be on the internet they are given a specific address called their website address (home page). This address usually starts with a www. (meaning world wide web), a name, then “.com” (for “commercial”). If the group is not a commercial enterprise (like a charity), it could end in “.org” (for “organization”), “.edu” (for education), or “.gov” (for “government”). USING THE INTERNET – Website Addresses
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To access a specific website, you need to enter the correct address in the browser’s address box. When you enter this address, you must enter the address characters exactly as you see it – no spaces, and type all the characters (e.g. @, -, /, _ etc.) Lets say we wanted to go to a popular search engine website like “Google.” In the address box you would type: www.google.com and press the “enter” key on the keyboard.
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USING THE INTERNET – BAR’s Website BAR’s website has a lot of useful information for Smog Check technicians and stations. The site has been recently been updated, and some new features were added. This site can provide you with information that can assist you in performing an inspection. Some of this site’s information is not available on any other website. So let’s take a look at some of the information that is available:
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Accessing Manufacturer Websites - TSBs Accepted engine performance/emission failure diagnostic procedures require the technician to check (early on in the process) for Technical Service Bulletins (TSBs)- usually after checking for Diagnostic Trouble Codes (DTCs). Often, the most up-to-date source for these TSBs is the manufacturer’s website. Today, these websites can be accessed by the technician via the internet, for a nominal fee (and in some cases for free!)
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Q: So how can a TSB help me? Imagine the following situation: A technician has a 2004 1.6L Hyundai Accent that has the following DTC: P0130 (oxygen sensor malfunction). Without Checking for TSBs, the tech incorrectly replaces the O 2 sensor with a new one – same code reappears! WHAT TO DO NOW? Accessing Manufacturer Websites - TSBs
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Had the technician checked the manufacturer’s website, he/she would have found the following TSB related to this code: As you can see, this was not an O 2 sensor failure issue, but an ECM reprogramming issue. Now the shop must suffer the loss of time and money (O 2 sensor was not returnable) that resulted from an incorrect diagnosis and not following a sound diagnostic procedure. Technical Service Bulletin This bulletin supersedes TSB# 05-36-003-2 to correct DTC code in the title from P0530 to P0503. Subject: 2000-2004 1.5L & 1.6L ACCENT P0130 (OXYGEN SENSOR) AND P0503 (SPEED SENSOR) Group: ENGINE ELECTRICAL Number: 06-36-002 Date: MAY, 2006 Model: 2000-2004 ACCENT DESCRIPTION: Some 2000-2004 Accents with 1.5L SOHC and 1.6L DOHC engines may experience the following symptoms:: DTC P0130 (Oxygen Sensor Malfunction)DTC P0130 (Oxygen Sensor Malfunction) DTC P0503 (Speed Sensor Malfunction) Reverse to Drive lurch while rolling backwards (On Automatic Transaxle equipped vehicles only) This bulletin describes the procedure for updating the Engine Control Module (ECM) software to improve the above condition by using the Hi-Scan Pro. VEHICLES AFFECTED: Model: 2000-2004 ACCENT vehicles with 1.5L SOHC and 1.6L DOHC engines.
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Accessing Manufacturer Websites - TSBs OK, you have convinced me that TSBs have value, but I have never been to a manufacturer’s (mfg.) website before, where is it located and how do I access this information? It is not as hard as you think, let’s take this process step-by-step. The first step is to find the specific manufacturer’s webpage address for the vehicle you are working on. An organization called “The National Automotive Service Task Force” has provided a list of mfg. webpage addresses: www.nastf.org. So let’s go there now!
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Accessing Manufacturer Websites - Getting an Email Address But I don’t have an email address, how do I get one? You can set up a “free” email account at various websites, some of which are: www.hotmail.com www.hotmail.com www.gmail.com www.gmail.com www.yahoo.com www.yahoo.com
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Accessing Manufacturer Websites Now that you know how to sign up to access a manufacturer’s website, let’s explore some the information you might find on a typical website:
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Other Helpful Websites There are many other websites that can assist a Smog Check technician. One popular website is the “International Automotive Technicians Network” (www.I-ATN.com). This site’s ‘standard’ membership level is “free”. Let’s take a look at some of the features of this site that might be of value: Note: The Dept. of Consumer Affairs/Bureau of Automotive Repair (BAR) does not endorse any one particular website. The information noted in this presentation is provided as a source of information for Smog Check technicians, to assist them in diagnosing and repairing emission failures. BAR does not take any responsibility for the accuracy of a website’s content, nor do the website participants views necessarily reflect those views held by BAR.
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If you are interested in adding to your knowledge of engine performance systems, you might find the following websites very useful. Note: The Dept. of Consumer Affairs/Bureau of Automotive Repair (BAR) does not endorse any one particular website. The information noted in this presentation is provided as a source of information for Smog Check technicians, to assist them in diagnosing and repairing emission failures. BAR does not take any responsibility for the accuracy of a website’s content, nor do the website participants views necessarily reflect those views held by BAR. Other Helpful Websites http://www.import-car.com/ http://motorage.search-autoparts.com/ http://www.motor.com/ http://service.gm.com/index_en-US.html http://www.motorcraft.com/ http://www.autoshop101.com/ http://www.aeswave.com/Articles/index.htm http://www.underhoodservice.com/ http://www.wellsmfgcorp.com/index.html http://www.aa1car.com/library.htm http://www.kemparts.com/scripts/141.asp http://www.smogsite.com/articles.html
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INTERNET QUIZ Q: What type of program does your PC need to access the internet? A:An internet browser program. Q:If you type in this address: www.smog check.ca.gov in the browser address box, will the system take you to that website? (look closely) A:No, you cannot have spaces in a website address.
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INTERNET QUIZ Q: Name three areas on BAR’s Smog Check website that can assist a licensed Smog Check technician: A:Vehicle test history, BAR Blasts, and ARB’s aftermarket parts database. Q:Only dealer techs are allowed to access a manufacturer’s website. True or False? A:False, anyone can access their sites.
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INTERNET QUIZ Q: Name a website where can you find a list of vehicle manufacturers websites? A:The “National Automotive Service Task Force” website: www.nastf.org. Q:You must own a PC and pay money to a service provider to get a personal internet address. True or False? A:False. A number of websites will allow you to sign up for email service, and provide you with an email address for free.
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- INTERNET EXAM - Your instructor will now hand out your internet, take home, examination. As noted in the student course syllabus you received prior to the start of this course, you will need to gain access to a PC and complete this examination. Your instructor should allow you at least two days to complete this assignment. -NOTE – YOU CANNOT PASS THIS COURSE IF YOU DO NOT COMPLETE THIS EXAMINATION!
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- INTERNET EXAM - -NOTE – YOU CANNOT TAKE THE FINAL EXAM UNTIL ALL EXAMINATIONS ARE TURNED IN! 1.Reading quiz 2.Internet assignments 3.Lab assignments We have computers here if you don’t have access. Let us know and you can come in early or during the day ** Be sure to bring your smog badge to exam night**
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