Engine Controls Schematics. Chevrolet Express 2001

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2001 🢒 Express 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Engine Controls Schematics

Figure 1:	Power, Ground, MIL and DLC Master Electrical Component List Powertrain Control Module Description Ignition Controls: CKP and CMP Sensors and KS OBD II Symbol Description Notice Battery, Auxiliary Battery, and Underhood Fuse/Relay Center Ignition A, Ignition B Fuses, and Ignition Switch Ignition A, Ignition B Fuses, and Ignition Switch Gauges Fuse ECM 1 and Ignition E Fuses (8.1L) ECM B, Horn, and A/C Fuses Indicators 1 of 2 (Gas) G101 (Gasoline Engines) Data Link Communications
Figure 2:	Ignition Controls: CKP and CMP Sensors and KS Master Electrical Component List Powertrain Control Module Description Ignition Controls: Odd Ignition Coils Power, Ground, MIL and DLC OBD II Symbol Description Notice
Figure 3:	Ignition Controls: Odd Ignition Coils Master Electrical Component List Electronic Ignition (EI) System Description Ignition Controls: Even Ignition Coils Ignition Controls: CKP and CMP Sensors and KS OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch ECM 1 and Ignition E Fuses (8.1L) G103 (8.1L Engine)
Figure 4:	Ignition Controls: Even Ignition Coils Master Electrical Component List Electronic Ignition (EI) System Description Fuel Pump Controls Ignition Controls: Odd Ignition Coils OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch ECM 1 and Ignition E Fuses (8.1L) G103 (8.1L Engine)
Figure 5:	Fuel Pump Controls Master Electrical Component List Fuel System Description Fuel Injector Controls Ignition Controls: Even Ignition Coils OBD II Symbol Description Notice Battery, Auxiliary Battery, and Underhood Fuse/Relay Center ECM B, Horn, and A/C Fuses G101 (Gasoline Engines) G103 (8.1L Engine) Gauges
Figure 6:	Fuel Injector Controls Master Electrical Component List Fuel System Description Sensor Controls: EGR, Fuel Tank Pressure Sensor, MAP, IAT, ECT Fuel Pump Controls OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch ECM 1 and Ignition E Fuses (8.1L)
Figure 7:	Sensor Controls: EGR, Fuel Tank Pressure Sensor, MAP, IAT, ECT Master Electrical Component List Powertrain Control Module Description Sensor Controls: MAF and EVAP Fuel Injector Controls OBD II Symbol Description Notice Gauges
Figure 8:	Sensor Controls: MAF and EVAP Master Electrical Component List Evaporative Emission Control System Description TAC, APP and TP Sensor Sensor Controls: EGR, Fuel Tank Pressure Sensor, MAP, IAT, ECT OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse (4.3L, 5.0L, and 5.7L) G101 (Gasoline Engines)
Figure 9:	TAC, APP and TP Sensor Master Electrical Component List Powertrain Control Module Description Heated Oxygen Sensors Sensor Controls: MAF and EVAP OBD II Symbol Description Notice ABS, Blower, AIR and Rear Blower Fuses ABS, Blower, AIR and Rear Blower Fuses G101 (Gasoline Engines)
Figure 10:	Heated Oxygen Sensors Master Electrical Component List Powertrain Control Module Description Secondary AIR Controls TAC, APP and TP Sensor OBD II Symbol Description Notice Engine 1 Fuse (4.3L, 5.0L, and 5.7L) Ignition A, Ignition B Fuses, and Ignition Switch G103 (4.3L, 5.0L, and 5.7L Engines)
Figure 11:	Secondary AIR Controls Master Electrical Component List Powertrain Control Module Description Automatic Transmission Control References 4L80-E Heated Oxygen Sensors OBD II Symbol Description Notice Battery, Auxiliary Battery, and Underhood Fuse/Relay Center Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse (4.3L, 5.0L, and 5.7L) G103 (8.1L Engine)
Figure 12:	Automatic Transmission Control References 4L80-E Master Electrical Component List Powertrain Control Module Description VSS, Charging System and HVAC References Secondary AIR Controls OBD II Symbol Description Notice Solenoid and TCC/Stoplamp Controls Sensor, Solenoid and GND Controls
Figure 13:	VSS, Charging System and HVAC References Master Electrical Component List Powertrain Control Module Description Automatic Transmission Control References 4L80-E OBD II Symbol Description Notice Engine Controls Schematic Icons Gauges Wheel Speed Sensors, VSS and Brake Pressure Switch Charging System: Gasoline Engines A/C Fuses; ECM-B, IGN-E, Compressor Clutch, A/C Compressor Low PressurE Cutout Switch, G101, G103 (Gasoline Engines) A/C Fuses; ECM-B, IGN-E, Compressor Clutch, A/C Compressor Low PressurE Cutout Switch, G101, G103 (Gasoline Engines)