Operation CHARM: Car repair manuals for everyone.

Camshaft Position Sensor: Testing and Inspection


NOTICE: "Cold" and "Hot" in the following sentences express the temperature of the coils themselves. "Cold" is from -10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).





1. REMOVE DISTRIBUTOR CAP
Remove the 2 bolts, and disconnect the distributor cap from the distributor housing.
2. REMOVE ROTOR





3. INSPECT AIR GAP
Using SST, measure the air gap between the signal rotor and pickup coil projection. SST 09240-00020

Air gap: 0.2-0.45 mm (0.008-0.018 in.)

If the air gap is not as specified, replace the distributor housing assembly.
4. DISCONNECT DISTRIBUTOR CONNECTOR





3. INSPECT SIGNAL GENERATOR (PICKUP COIL) RESISTANCE
Using an ohmmeter, measure the resistance between terminals.





Pickup coil resistance:

If the resistance is not as specified, replace the distributor housing assembly.
4. RECONNECT DISTRIBUTOR CONNECTOR
5. REINSTALL ROTOR AND DISTRIBUTOR CAP Crankshaft Position Sensor