3.5L / 4.0L Engine Sensor Locations
Typical engine data sensor and control component locations on the GM Oldsmobile Aurora and Intrique 3.5L V6 engine. 4.0L V8 similar. Click sensor description below image for sensor details.

1. Fuel pressure regulator
2. Idle Air Control Motor (IAC)
3. Mass Airflow sensor (MAF)
4. Throttle Body
5. Throttle Position Sensor (TPS)
6. Fuel Injector
7. PCV Valve
8. Evap Purge Solenoid
9. EGR Valve
10. Underhood Fuse Block