On-Board Computer Systems Theory and Operation
Length: 6 Hours
Recommended Experience Level:
Introduction to computer controlled vehicles
Subject Outline:
Computerized Fuel Management; carburetion and fuel injection. Closed loop, open loop, &
adaptive modes. Computerized Air Management; flow control, switching, and diversion.
Parameters sensed, (pull-up and pull-down circuits), and parameters controlled. Fault diagnosis.
Testing Logic.
GM Computer Command Control Diagnostics
Length: 6 Hours
Recommended Experience Level:
Basic understanding of Computer Command Control Systems
Subject Outline:
Review of Computer Command Control. Logical diagnostic procedure: Diagnostic Circuit Test.
System Performance Test. Field Service Mode Check. When to use “A” Charts, “Code Charts”,
and/or “C” Charts. Scanner information and what it means. Non-Code Driveability Diagnosis.
GM Electronic Fuel Injection
Length: 6 Hours
Recommended Experience Level:
General understanding of Computer Command Control Systems
Subject Outline:
Operating characteristics of throttle body, multi-port, and sequential fuel injection systems.
Function, purpose, and how to diagnose components of each system, including; Idle Air Control.
and Mass Air Flow sensors. Check fuel system pressure. Fuel injector balance tests. Adjust
minimum air rate and throttle position sensors.
GM Advanced Fuel Injection & Non-Code Driveability Diagnostics
Length: 6 Hours
Recommended Experience Level:
Understanding of carbureted and fuel injection CCC systems
Subject Outline:
Code and Non-Code Driveability Diagnosis. ALCL terminal functions. ALCL diagnostic Modes.
Integrator and Block Learn. Scan diagnosis and non-scan diagnosis. “Scan” diagnostic circuit
check, and “Non-Scan” diagnostic circuit check. Trouble code definitions. When to use “A”
Charts, Code Charts, and/or “C” Charts.
GM Distributorless Ignition Systems
Length: 6 Hours
Recommended Experience Level:
Understanding of electronic ignition systems
Subject Outline:
Theory of Waste-Spark compared to HEI operation. Hall Effect switches. Module operation and
diagnosis. “Soft shutdown” and EST functions. Coil packs, crankshaft sensors, and camshaft
sensors. Cylinder balance test for diagnosis of open or shorted plug wires, and/or spark plug
operation. Diagnose vehicles with no spark.
Ford Electronic Engine Controls IV Operation
Length: 6 Hours
Recommended Experience Level:
Knowledge of computer controlled vehicles
Subject Outline:
Computer systems (Components). Electronic fuel injection system component diagnosis, both
on-car and bench tests. Inputs and Outputs. Thick Film Integrated Ignition System: Operation
and Diagnosis. Idle tracking and idle speed controls. Importance of fuel system servicing.
Ford Electronic Engine Controls IV Diagnostics
Length: 6 Hours
Recommended Experience Level:
Knowledge of the Ford EEC IV system operation
Subject Outline:
Proper diagnostic procedures. Preliminary tests, KOEO Test, Computed Timing Test, and KOER
Test. Differences between fast, slow, on-demand, separate, and continuous codes. Dynamic
response, wiggle, and output state tests. Sequential fuel injection system on-board cylinder balance
test.
Chrysler (TBI/MPI) On-Board Computer System Diagnosis
Length: 6 Hours
Recommended Experience Level:
Knowledge of computer controlled systems
Subject Outline:
On-board Computer System Diagnosis using a Scan Tool. EFI systems; operation and
components. Perform system interrogation, diagnostic trouble code retrieval, switch tests, ATM
test, running tests, and data line tests using a scan tool. Use driveability charts to diagnose trouble
codes and driveability complaints.
Chrysler Single Module Engine Controller System (SMEC)
Length: 6 Hours
Recommended Experience Level:
Knowledge of Chrysler computer controlled EFI systems
Subject Outline:
System operation and test procedures. Design and service procedure changes. Heated oxygen
sensors. Pintle style idle speed control. Actuator Test Mode procedure using a scan tool.
Procedures for clearing trouble codes and Emission Maintenance reminder light using a scan tool.
Driveability and Emission Repair By 4 and 5 Gas Analysis
Length: 6 Hours
Recommended Experience Level:
Familiarity with 2-Gas analysis and basic tune-up procedures
Subject Outline:
Driveability and Enhanced Emission Repair through 4 and 5-Gas Analysis. NOx, production and
control. Catalytic Converter conditions, operation, testing procedures, and laws governing service.
Formation of exhaust gases, exhaust gas relationships, and using the 4 or 5 Gas Analyzer for
diagnostics.
Honda PGM-FI Programmed Fuel Injection
Length: 6 Hours
Recommended Experience Level:
Familiar with computer controlled vehicles
Subject Outline:
Diagnose and repair fuel-metering system. Trouble shooting tips and procedures. Tools for
diagnosis and repair. Components of the X and M systems. Feedback control solenoid valve,
frequency solenoid valves, and pulse rectifiers.
Toyota EFI and TCCS Air, Fuel, Fuel Injection, and Ignition Systems
Length: 6 Hours
Recommended Experience Level:
Introduction to computer controlled vehicles
Subject Outline:
Vane airflow and Karman Vortex airflow meters. Air induction air chamber and manifold. Throttle
body air bypass circuits. Fuel pump circuits. Fuel injectors; operation, and installation cautions.
Air assist system. Start injector time switch. Ignition systems.
Toyota EFI and TCCS Input and Output Sensors, and ECU Functions
Length: 6 Hours
Recommeded Experience Level:
Basic understanding of Air Induction, Fuel and Injection ontrol, and Ignition systems
Subject Outline:
Inputs: Air Flow Meter, Manifold Absolute Pressure Sensor, Water Temperature Sensor, Knock
Sensor, Altitude Sensor, and Stop Light Switch. Outputs: Fuel Injection Control and Spark
Advance. Self Diagnosis. Emission Control. Failure Management. Service Precautions.
Toyota EFI and TCCS Idle Speed, Emission, and Other Controls
Length: 6 Hours
Recommended Experience Level:
Understanding of Input and Output Sensors and ECU functions
Subject Outline:
Idle speed control systems. Input sensors affecting idle speed control. Exhaust gas recirculation
system. EGR control system operation. EGR system fault detection. Fuel evaporative
emissions control system. Variable induction systems. Acoustic control induction system.
Turbocharger and Supercharger controls.
Toyota EFI and TCCS Driveability Diagnosis
Length 6 Hours
Recommended Experience Level:
Understanding of Toyota Computer Control System Operation
Subject Outline:
Theory and operation review. Self-Diagnostic System: Procedure to retrieve trouble codes, No
Self-Diagnostic system output, and Quality Control Check. Troubleshooting Conventioonal EFI:
Basic Testing, tests with codes, tests without codes, system tests, and component tests. |