GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 Impala 🢒 Engine 🢒 Engine Controls - 3.9L 🢒 Engine Controls Component Views
Figure 1:

Left Front of the Engine Compartment
Object Number: 1653137 Size: LF
(1)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(2)Brake Booster Vacuum Sensor (LS4)
(3)Windshield Wiper Motor
(4)Electronic Brake Control Module (EBCM)
(5)A/C Refrigerant Pressure Sensor
(6)Transmission Control Module (TCM)
(7)Engine Control Module (ECM)
(8)G101
(9)Inflatable Restraint Front End Sensor - Left
Figure 2:

Near the Air Cleaner Duct (LZE, LZ4, LZ9)
Object Number: 1700230 Size: LF
(1)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(2)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(3)Air Cleaner Housing
Figure 3:

Front of the Engine (LZE, LZ4, LZ9)
Object Number: 1700287 Size: LF
(1)Camshaft Position (CMP) Sensor
(2)Knock Sensor (KS) Bank 2
(3)Engine Oil Pressure (EOP) Sensor
(4)Camshaft Position Actuator Solenoid
Figure 4:

Top of the Engine (LZE, LZ4, LZ9)
Object Number: 1700296 Size: LF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)Throttle Body
(3)Intake Manifold
(4)Intake Manifold Tuning (IMT) Valve Solenoid (LZ9)
(5)Camshaft Position (CMP) Sensor
(6)Heated Oxygen Sensor (HO2S) 1
(7)Ignition Control Module (ICM)
Figure 5:

Beneath the Upper Intake (LZE, LZ4, LZ9)
Object Number: 1700294 Size: LF
(1)Fuel Injector 5
(2)Engine Coolant Temperature (ECT) Sensor
(3)Fuel Injector 6
(4)Fuel Injector 4
(5)Fuel Injector 2
(6)Fuel Injector 1
(7)Fuel Injector 3
Figure 6:

Rear of the Engine (LZE, LZ4, LZ9)
Object Number: 1700291 Size: LF
(1)Throttle Body
(2)Ignition Control Module (ICM)
(3)Heated Oxygen Sensor (HO2S) 1
(4)Engine Coolant Heater
(5)Engine Oil Level Switch
(6)Crankshaft Position (CKP) Sensor
(7)Knock Sensor (KS) Bank 1
Figure 7:

Underbody
Object Number: 1203644 Size: LF
(1)Heated Oxygen Sensor (HO2S) 2
Figure 8:

Pedal Assemblies
Object Number: 1700245 Size: LF
(1)Park Brake Switch
(2)Dash Panel
(3)Brake Pedal Position Sensor
(4)Accelerator Pedal Position (APP) Sensor
Figure 9:

Fuel Tank Components
Object Number: 1653116 Size: LF
(1)Fuel Tank
(2)Fuel Pump and Sender Assembly
(3)Fuel Tank Pressure (FTP) Sensor
(4)Evaporative Emission (EVAP) Canister Vent Solenoid