OBD2 Sensors >> GM 3.4L V6 LA1 Engine Sensor Locations

1. Fuel injectors (located on the top of the engine under intake manifold)
2. Mass airflow sensor (MAF) (attached to air cleaner)
3. Intake Air Temp Sensor (IAT) (located in tube between air filter housing and engine)
4. Camshaft position sensor (CMP) (located at the engine timing cover)
5. Oil pressure sensor (located towards rear of engine on front side of vehicle)
6. Knock sensor (KS) (located on the front of engine above the oil filter)
7. Crankshaft position sensor (CKP) (located on the front of engine near crankshaft pulley)
8. Engine coolant temperature sensor (ECT) (located at the rear of engine on top)
9. Ignition coils (located on top of engine towards rear of vehicle)
10. Heated Oxygen Sensors (HO2S) (located in the rear exhaust manifold)
11. Throttle Body / Idle Air Control (IAC) / Throttle Position Sensor (TPS)
12. Manifold Absolute Pressure Sensor (MAP) (on top of front of engine attached to intake manifold)

Models Found On

• 2002–2005 Buick Rendezvous
• 2000–2005 Chevrolet Impala
• 2000–2005 Chevrolet Monte Carlo
• 1996 Chevrolet Lumina Minivan
• 1997–2005 Chevrolet Venture
• 1999–2004 Oldsmobile Alero
• 1996–2004 Oldsmobile Silhouette
• 2001–2005 Pontiac Aztek
• 1999–2005 Pontiac Grand Am
• 1999–2005 Pontiac Montana
• 1996–1998 Pontiac Trans Sport