OBD2 Sensors >> GM 3.1L V6 L82/LG8 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

• 1994–2005 Buick Century
• 1994–1996 Buick Regal
• 1994–1998 Buick Skylark
• 1994–1996 Chevrolet Beretta
• 1994–1996 Chevrolet Corsica
• 1995–2001 Chevrolet Lumina
• 1997–2003 Chevrolet Malibu
• 1995–1999 Chevrolet Monte Carlo
• 1994–1998 Oldsmobile Achieva
• 1997–1999 Oldsmobile Cutlass GLS
• 1994–1996 Oldsmobile Cutlass Ciera
• 1993–1997 Oldsmobile Cutlass Supreme
• 1994–1998 Pontiac Grand Am
• 1994–2003 Pontiac Grand Prix