Edit: This is for a friend'* 89 Bonneville.
If the CPS is right behind the water pump, though I do see it, how do I go about replacing it?
Here'* Alldata'* info on the sensor:
The cam sensor is located on the timing cover behind the water pump near the camshaft sprocket. As the camshaft sprocket turns, a permanent magnet activates the Hall-Effect switch in the cam sensor. When the Hall-effect switch is activated, it grounds the signal line to the ECM, pulling the cam signal line'* applied voltage low. This is interpreted as a cam signal. The cam signal is created as piston #1 is approximately 25°after top dead center on the power stroke. When the cam signal is not received by the ECM, a Code 41 will set.
We shorted out the A&B sockets on the computer plug, and the computer is truly showing code 41. The car has a fair acceleration rate, but I know 3800 engines can do better. Here'* Alldata'* set of instructions for replacing the sensor:
REMOVAL AND INSTALLATION
1. Disconnect battery ground cable.
2. Remove water pump pulley attaching bolts, then the serpentine belt and water pump pulley.
3. Disconnect sensor wiring connector and remove sensor retaining bolt.
4. Twist and pull sensor to remove.
5. Reverse procedure to install and prior to installing new sensor, lubricate sensor O-ring.
Is there an easier way of doing this? If I take off the water pump pulley, is it necessary to be accurate on the bolt torque specs when putting it back on?