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Engine Controls (Introduction) - 4.2L
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Schematic and Routing Diagrams
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Engine Controls Schematics
Engine Controls Schematics
Fig 1: Power, Ground, Serial Data, and MIL
Courtesy of GENERAL MOTORS CORP.
Fig 2: 5-Volt and Low Reference
Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors - Pressure and Temperature
Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Data Sensors - Oxygen Sensors
Courtesy of GENERAL MOTORS CORP.
Fig 5: Engine Data Sensors - Throttle Actuator Controls and VSS
Courtesy of GENERAL MOTORS CORP.
Fig 6: Ignition Controls - Ignition System
Courtesy of GENERAL MOTORS CORP.
Fig 7: Ignition Controls - Sensors
Courtesy of GENERAL MOTORS CORP.
Fig 8: Fuel Controls - Fuel Pump Controls and Fuel Injectors
Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuel Controls - EVAP Controls
Courtesy of GENERAL MOTORS CORP.
Fig 10: Controlled/Monitored Subsystem References
Courtesy of GENERAL MOTORS CORP.
Fig 11: Transmission Control References - A/T
Courtesy of GENERAL MOTORS CORP.