LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
GMC
>>
2009
>>
Envoy 4.2 S, 4WD
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System & Fuel System - 4.2L - Introduction
>>
Schematic and Routing Diagrams
>>
Engine Controls Schematics
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Engine Controls Schematics
Fig 1: Module Power, Ground, Serial Data, and MIL
Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Data Sensors - 5-Volt and Low Reference
Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors - MAF, 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 - Electronic Throttle Control
Courtesy of GENERAL MOTORS CORP.
Fig 6: Ignition Controls - Ignition Coils 1, 3, and 5
Courtesy of GENERAL MOTORS CORP.
Fig 7: Ignition Controls - Ignition Coils 2, 4, and 6
Courtesy of GENERAL MOTORS CORP.
Fig 8: Ignition Controls - Sensors
Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuel Controls - Fuel Pump and Fuel Injectors
Courtesy of GENERAL MOTORS CORP.
Fig 10: Fuel Controls - EVAP Controls
Courtesy of GENERAL MOTORS CORP.
Fig 11: Device Controls - K18
Courtesy of GENERAL MOTORS CORP.
Fig 12: Controlled/Monitored Subsystem References
Courtesy of GENERAL MOTORS CORP.