Fig 1: Throttle Body, Manifold Absolute Pressure (MAP), Oil Pressure Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Body
2	Manifold Absolute Pressure (MAP) Sensor
3	Oil Pressure Switch

Fig 2: Exhaust Gas Recirculation (EGR) Valve, Knock Sensor (KS) Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Exhaust Gas Recirculation (EGR) Valve (Euro Emissions)
2	Knock Sensor (KS)
3	Exhaust Gas Recirculation (EGR) Valve (ECE 83 Emissions)

Fig 3: Fuel Injectors, Heated Oxygen Sensor (HO2S) 1, Heated Oxygen Sensor (HO2S) 2, Intake Air Temperature (IAT) Sensor Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector 1
2	Fuel Injector 2
3	Fuel Injector 3
4	Fuel Injector 4
5	Heated Oxygen Sensor (HO2S) 1/Oxygen Sensor (O2S) (ECE 83 Emissions)
6	Heated Oxygen Sensor (HO2S) 2
7	Intake Air Temperature (IAT) Sensor

Fig 4: View Of Camshaft Position (CMP), Crankshaft Position (CKP) Sensors And EVAP Canister Purge Solenoid Valve (L95, LXT)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Camshaft Position (CMP) Sensor
2	Crankshaft Position (CKP) Sensor
3	Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

Fig 5: Identifying Engine Coolant Temperature (ECT), Ignition Coils, Engine Control Module (ECM) Components (L95, LXT)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine Coolant Temperature (ECT)
2	Ignition Coils/Modules
3	Engine Control Module (ECM)

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Engine Controls Component Views