GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Regal 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Engine Controls Component Views
Figure 1:

LF of the Engine Compartment Components
Object Number: 924700 Size: MF
(1)Powertrain Control Module (PCM)
(2)Engine Wiring Harness
Figure 2:

Lower Front of the Engine Components (L36)
Object Number: 1036210 Size: MF
(1)Starter Solenoid B Terminal
(2)G113
(3)Battery Cable Wiring Harness
(4)Engine Wiring Harness
(5)Starter Solenoid S Terminal
(6)Engine Oil Level Sensor
(7)Knock Sensor (KS) 1
(8)Starter
Figure 3:

Lower Front of the Engine Components (L67)
Object Number: 925019 Size: MF
(1)Starter Solenoid B Terminal
(2)G113
(3)Battery Cable Wiring Harness
(4)Engine Wiring Harness
(5)Starter Solenoid S Terminal
(6)Engine Oil Level Sensor
(7)Knock Sensor (KS) 1
Figure 4:

Lower Rear of the Engine (L36/L67)
Object Number: 1043361 Size: MF
(1)Knock Sensor (KS) 2
(2)Knock Sensor (KS) 2 Connector
(3)Knock Sensor (KS) 2 Jumper Harness
(4)C125
Figure 5:

RF of the Engine Compartment (L36/L67)
Object Number: 1043757 Size: MF
(1)Camshaft Position (CMP) Sensor
(2)Ignition Control Module (ICM) Wiring Harness
(3)C110
(4)Ignition Control Module (ICM)
(5)Ignition Coils
(6)G111
(7)Ignition Control Module (ICM) Wiring Harness
(8)Ignition Control Module (ICM) Wiring Harness
(9)Crankshaft Position (CKP) Sensor
Figure 6:

Left Top of Engine
Object Number: 881472 Size: MF
(1)Idle Air Control (IAC) Valve
(2)Mass Air Flow (MAF) Sensor
(3)Throttle Position (TP) Sensor
Figure 7:

Top Front of Engine
Object Number: 305311 Size: LF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)C110
(3)C126
(4)Fuel Injector 5 Connector
(5)Engine Wiring Harness
(6)Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
(7)Fuel Injector 3
(8)Fuel Injector 1
(9)Ignition Control Module (ICM) Wiring Harness
Figure 8:

Upper Rear of the Engine Components (L67)
Object Number: 924570 Size: MF
(1)Generator BAT Terminal
(2)Generator
(3)Generator Connector
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Fuel Injector 2
(6)Fuel Injector 4
(7)Fuel Injector 6
(8)Emission Evaporative (EVAP) Canister Purge Solenoid Valve
Figure 9:

Upper Rear of the Engine Components (L36)
Object Number: 924806 Size: MF
(1)Generator BAT Terminal
(2)Generator
(3)Generator Connector
(4)Heated Oxygen Sensor (HO2S) 1
(5)Fuel Injector 2
(6)Fuel Injector 4
(7)Fuel Injector 6
(8)Engine Wiring Harness
Figure 10:

Right Front Frame Rail Behind Front Bumper
Object Number: 327461 Size: LF
(1)Engine Wiring Harness
(2)Fuel Pump Resistor
Figure 11:

Fuel Sender System
Object Number: 769961 Size: LF
(1)Fuel Tank Pressure (FTP) Sensor
(2)Fuel Line Quick Connector
(3)Fuel Pump
(4)Base Plate
(5)Fuel Strainer
(6)Fuel Level Sensor
(7)Springs
Figure 12:

Vehicle Fuel Tank
Object Number: 374824 Size: LF
(1)C405
Figure 13:

Under Vehicle, Rear of the Engine
Object Number: 1060619 Size: MF
(1)Catalytic Converter
(2)Engine Wiring Harness
(3)Heat Exhaust Shield
(4)Heated Oxygen Sensor (HO2S) 2
Figure 14:

Left Front of Engine
Object Number: 374696 Size: LF
(1)Idle Air Control (IAC) Valve
(2)Mass Air Flow (MAF) Sensor
(3)Inside Air Temperature (IAT) Sensor
(4)Throttle Position (TP) Sensor
Figure 15:

Top Front of Engine
Object Number: 374698 Size: LF
(1)Supercharger Boost Control Solenoid
(2)C126
Figure 16:

Transmission (L36/L67)
Object Number: 1042171 Size: MF
(1)C113
(2)Electronic Brake Control Module (EBCM) Connector (JL9/JM4)
(3)C101
(4)Automatic Transmission
(5)Engine Wiring Harness
Figure 17:

VSS and Engine Oil Pressure Switch -- Lower Rear of Engine
Object Number: 305318 Size: LF
(1)Power Steering Pump
(2)Engine Oil Pressure (EOP) Switch
(3)Vehicle Speed Sensor (VSS)
(4)Rack and Pinion Assembly