Matthew Currie
NAXJA Member #760
- Location
- Vermont, land of big clay
The 99 Factory Service Manual calls the thing in the distributor the Camshaft Position Sensor. It does not give a testing procedure for it as far as I find with a cursory read, but the 95 manual does, and I think the sensors are the same. For the 95, you need an analog voltmeter. Using a paper clip to back-probe the connector (connector still connected), you must connect the voltmeter positive to the sensor output wire. That should be pin # 1 on the connector. Then connect the meter negative to ground. Set the meter to 15 volt scale. REmove the distributor cap. There follows in the manual a detailed procedure for tracking down a lack of signal, but the basic test simply consists of cranking the engine and watching the voltmeter. It should cycle between about 5 and zero volts. If it does not, then either the sensor is bad or the signal getting to and from it is bad, and further testing is called for. Of course, first you must verify that your back probing has worked and that you're actually getting the voltmeter at the circuit. Basically, if you get no joy from this test, you must trace for voltage reaching the supply (#3) terminal from the PCM, the ground at the distributor, and so forth. While the sensors appear to be the same between 95 and 99, the PCM terminals certainly are not, so if you need further tracing and troubleshooting, post back and I'll try to feel my way through the terrible and badly organized 99 wiring diagrams to find you some pinouts.
I suggest that if you have noticed significant damage to the harness, you clean it up and test very carefully to make sure the wires are continuous, and not shorting, and then try again before doing any further work. It could be that simple, and wouldn't it be a grand and glorious feeling if it is!
I suggest that if you have noticed significant damage to the harness, you clean it up and test very carefully to make sure the wires are continuous, and not shorting, and then try again before doing any further work. It could be that simple, and wouldn't it be a grand and glorious feeling if it is!