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EGR DIAGNOSIS AND REPAIR |
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Our exhaust gas recirculation (EGR) class will help you diagnose and repair the many symptoms that can be caused by faults in the EGR system. The course covers:
- System purpose and component operation
- System monitoring requirements and methods
- Operation and pattern failures of different types of EGR systems
- Symptoms, diagnosis and repair of EGR failures
Hands-on exercises include:
- System orientation and component testing
- Methods of diagnosis and repair
- Scan tool data stream diagnosis
- Scan tool functional testing
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OBD II ELECTRONICS I (4 hours) |
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The first part of our new class practices safe, efficient, and effective electrical test procedures on systems and components of the OBDII electronic system. This course covers:
- Using a digital multimeter (DMM)
- Electrical circuit analysis
- Voltage drop testing
- Relay and solenoid testing
- PCM testing
Hands-on exercises include:
- Using a DMM to test for voltage and resistance
- Testing for voltage drops
- Testing relays and solenoids
- Testing PCM power and grounds using voltage drop method
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OBD II INSPECTION and REPAIR (4 hours) |
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The first course in the VCERTT series, OBD II Inspection and Repair describes the basic operation of the OBD II system including fault code structure and system monitoring requirements and strategies. This course covers:
- OBD II requirements and standards
- PCM monitoring strategies for fuel trim, misfire and comprehensive components
- PCM monitoring of the catalytic converter, the oxygen sensors and the EGR, AIR, and EVAP systems as well as PCV and thermostat
- Readiness Status
- Information resources for OBD II vehicles
Hands-on exercises include:
- Accessing and interpreting MIL command status, diagnostic trouble codes (DTCs), readiness status, freeze frame data and live data
- Performing the OBD portion of the Vermont state inspection
If you have had no other OBD II training, we recommend that you take this class before attending our other classes. A great class for new technicians too.
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MISFIRE DIAGNOSIS and
REPAIR (4 hours) |
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Our popular misfire class offers comprehensive testing procedures for all common, and some not so common, causes of misfire. You’ll learn strategies for dealing with random misfire DTCs and learn to effectively pinpoint the cause of a random or single cylinder misfire. This course covers:
- Misfire monitoring strategies
- Ignition system fault diagnosis
- Fuel system and injector testing
- Engine mechanical concerns
- Pattern failures
Hands-on exercises include:
- Ignition system testing
- Fuel system testing
- Engine breathing diagnosis
- Power balance and running compression testing
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EVAPORATIVE SYSTEMS DIAGNOSIS
and REPAIR (4 hours)
UPDATED THIS WINTER! |
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Take the mystery out of evaporative emissions (EVAP) system operation, monitoring, and diagnosis and repair. This class discusses the operation of foreign and domestic EVAP systems and their monitoring procedures. This course covers:
- Foreign and domestic system operation
- Component function and testing
- Evaporative system monitoring strategies
- Pattern failures
Hands-on exercises include:
- Component testing with a digital multimeter and a scan tool
- Leak detection methods including a smoke machine
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OXYGEN SENSOR and AIR FUEL RATIO SENSOR DIAGNOSIS and REPAIR (4 hours)
UPDATED THIS WINTER!
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Oxygen sensor problems are among the top ten reasons why vehicles fail the OBD portion of the Vermont state inspection. Learn how oxygen sensors (O2S) and wide range air fuel ratio sensors work, what information they provide to the PCM, and how to diagnose faulty sensors. This course covers:
- O2S and air fuel ratio sensor (AFRS) operation
- O2S monitoring strategies and DTCs
- Testing an AFRS
Hands-on exercises include:
- O2S heater circuit diagnosis
- Testing the O2S with a digital multimeter
- Analyzing an O2S signal with a scope
- Interpreting fuel trim data and using it in O2S diagnosis
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***COMING THIS SPRING: OBD II and CAN UPDATE |
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This will be a fully updated version of our original OBD II course. We will include the latest monitoring requirements and new data required to be shown on the scan tool. We'll also explain the new controller area network (CAN) communication protocol required on all vehicles by 2008 and how this will affect your diagnosis and repair.
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***COMING THIS SPRING: UNDERSTANDING FUEL TRIM, DTCS, and DIAGNOSIS |
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P0171 - System Too Lean Bank 1 is one of the top ten DTCs found in OBD inspections. We'll discuss fuel trim, its DTCs, and practice diagnosis of the problems that can cause these DTCs.
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***COMING SOON: OBD II ELECTRONICS II |
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The second part of our basic electronics class will thoroughly cover testing of OBD II sensors and actuators using a digital multimeter, a scope, and scan tool diagnostics. We will use scan tool data stream and functional tests for diagnosis of component and system failures including the often elusive fuel trim DTCs.
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