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Home >> Buick >> 2004 >> Park Avenue Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) - 3.8L (L36 & L67) >> Schematic and Routing Diagrams >> Engine Controls Schematics
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Engine Controls Schematics

Fig 1: Module Power, Ground, Serial Data & MIL Schematic
GM785926Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Data Sensors- 5 Volt & Low Reference Schematic
GM785928Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors Schematic
GM785930Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Data Sensors- Heated Oxygen Sensors Schematic
GM1276190Courtesy of GENERAL MOTORS CORP.
Fig 5: Ignition Controls- Ignition System Schematic
GM785931Courtesy of GENERAL MOTORS CORP.
Fig 6: Ignition Controls- Sensors Schematic
GM785932Courtesy of GENERAL MOTORS CORP.
Fig 7: Fuel Controls- Fuel Pump Controls Schematic
GM659434Courtesy of GENERAL MOTORS CORP.
Fig 8: Fuel Controls- Fuel Injectors Schematic
GM659435Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuel Controls- EVAP Controls Schematic
GM785933Courtesy of GENERAL MOTORS CORP.
Fig 10: Device Controls Schematic
GM875650Courtesy of GENERAL MOTORS CORP.
Fig 11: Controlled/Monitored Subsystem References Schematic
GM785935Courtesy of GENERAL MOTORS CORP.
Fig 12: Transmission Controls Schematic
GM902501Courtesy of GENERAL MOTORS CORP.