* At the front of the engine, near the distributor (if equipped): On engines with distributors, the CMP sensor is often mounted on the distributor itself or very close by on the engine block. This is a common location for older vehicles.
* On the top of the engine, near the camshaft: This is more common on engines without distributors. You'll likely find it on the valve cover, or possibly near the cylinder head where the camshaft is located. It might have a wiring harness plugged into it.
To locate it definitively, you should:
1. Consult a repair manual specific to your 1992 Oldsmobile 88's engine. This is the best way to get an accurate location and diagram. A Haynes or Chilton manual will be very helpful.
2. Look at online diagrams: Websites like AutoZone, Advance Auto Parts, or others that provide repair information often have diagrams you can search by your vehicle's year, make, model, and engine size.
3. Visually inspect the engine: Look for a sensor that's roughly the size of your thumb, usually with a single electrical connector and potentially a small gear or toothed wheel nearby. This is usually a good way to locate the CMP sensor.
Remember to disconnect the negative battery cable before doing any work near the engine to avoid electrical shocks or accidental short circuits. If you're not comfortable working on your car, take it to a mechanic.
