Were is the camshaft sensor on a 1998 cutlass 3.1

The camshaft position sensor is located on the distributor for all engines designed for the 1998 Dodge Dakota. Accessing the sensor requires removing the distributor cap and the distributor rotor. The camshaft sensor pigtail comes through the front of the distributor and connects to the engine wiring harness above the intake manifold.

1998 Oldsmobile Cutlass
3.1 liter V-6 VIN "M"

Not much if anything. The cam sensor sits right on top of the engine, at the front, one screw to remove, and pull it out.

Removal & Installation 3.1L Engine To Remove:
CMP sensor

1. Disconnect the battery ground cable.
2. Remove the power steering pump and set aside with the lines connected.
3. Disconnect the camshaft position (CMP) sensor electrical connector.
4. Remove the CMP mounting bolt.
5. Remove the CMP sensor.
6. Check the O-ring for damage and replace if necessary.

To Install:
NOTE: Lubricate the O-ring with clean engine oil.

1. Install the camshaft position sensor.
   • Tighten the mounting bolt to 89 in lb (10 Nm).
2. Connect the CMP sensor electrical connector.
3. Install the power steering pump.

3.4L Engine To Remove:

1. Disconnect the negative battery cable.
2. Detach the electrical connector from the camshaft position sensor.
3. Remove the sensor retainer bolt and carefully pull the sensor from the camshaft carrier. An O-ring seal may hold the sensor in place. Use care not to lose the O-ring.

Camshaft Position (CMP) sensor removal (3.4L (VIN X) engine)

To Install:

1. Installation is the reverse of the removal procedure.
2. Before installing a replacement camshaft sensor, lubricate the new O-ring with clean engine oil.
   • Tighten the bolt to 88 inch lbs. (10 Nm). Do not over-tighten.
3. Connect the negative battery cable.

3.8L Engine To Remove:

1. Disconnect the negative battery cable.
2. Detach the electrical connector from the camshaft position sensor. Camshaft Position Sensor removal (3.8L engines)
   
   
3. Remove the retaining screw and separate the sensor from the front cover.

To Install:

1. Installation the sensor in the front cover.
2. Tighten the bolt to just 44 inch lbs. (5 Nm). Do not over-tighten. Verify the electrical connector is secure.
3. Connect the negative battery cable.

What engine ? 2.2 or 3.1 ?

This 3.1 L back center of engine

The camshaft sensor is located at the back of the head on driver side. Remove the wire,unscrew the sensor,screw the new sensor in the head and put the wire back on the sensor

The camshaft sensor is not in the back on the 98 4 cyl its right in front. All you need to do is take off the 3 bolts on the top of the heat shield and pull it back a bit and it will be right there.

Change EGR. If that doesn't work, change Camshaft Sensor and Crankshaft Sensor.

the sensor is located behind the power steering pump the plug is on the front left side of motor red and green wires trace it to the sensor behind the power steering pump 8mm bolt holds sensor in and tough to pry out sometime .....

The cam sensor is integrated with the crank shaft sensor behind the crank shaft pulley. The 3.1 runs 2 crank sensors. the one behind the crankshaft pulley in integrated to act as a cam sensor. It has 2 sets on rings for that sensor, 1 is in use accustomed for the fuel timing. 
Good luck and hope this helps friend. 

it is located at rear of engine neer the firewall you will need to rotate the engine forward under the cylander closest to the drivers side it takes a 10 mm socet to remove it and its a little tricky