LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2006 >> Impala LTZ >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.9L - Introduction (2 Of 2) >> Component Locator >> Engine Controls Component Views
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Controls Component Views

Fig 1: LF of the Engine Compartment
GM1653137Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
2 Brake Fluid Level Switch
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
Fig 2: Near The Air Cleaner Duct (LZE, LZ4, LZ9)
GM1700230Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3 Air Cleaner Housing
Fig 3: Front Of Engine (LZE, LZ4, LZ9)
GM1700287Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Camshaft Position (CMP) Sensor
2 Knock Sensor (KS) Bank 2
3 Engine Oil Pressure (EOP) Sensor
4 Camshaft Position Actuator Solenoid
Fig 4: Top Of Engine (LZE, LZ4, LZ9)
GM1700296Courtesy of GENERAL MOTORS CORP.
Callout Component Name
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)
Fig 5: Beneath The Upper Intake (LZE, LZ4, LZ9)
GM1700294Courtesy of GENERAL MOTORS CORP.
Callout Component Name
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
Fig 6: Rear Of Engine (LZE, LZ4, LZ9)
GM1700291Courtesy of GENERAL MOTORS CORP.
Callout Component Name
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
Fig 7: Underbody
GM1203644Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Heated Oxygen Sensor (HO2S) 2
Fig 8: Pedal Assemblies
GM1700245Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Park Brake Switch
2 Dash Panel
3 Brake Pedal Position Sensor
4 Accelerator Pedal Position (APP) Sensor
Fig 9: Fuel Tank Components
GM1653116Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Tank
2 Fuel Pump and Sender Assembly
3 Fuel Pump
4 Evaporative Emission (EVAP) Canister Vent Solenoid Valve