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)
Hot is from 50°C (122°F) to 100°C (212°F).

1. DISCONNECT DISTRIBUTOR CONNECTORS.
2. REMOVE DISTRIBUTOR CAP.
3. REMOVE ROTOR.
4. REMOVE IGNITION COIL DUST COVER AND INSPECT IGNITION COIL.
5. INSPECT AIR GAP.



- Using a feeler gauge, measure the air gap between the signal rotor and pickup coil projection.

Air gap: 0.2 - 0.4 mm (0.008 - 0.016 in.)

- If the air gap is not as specified, replace the distributor housing assembly.

6. INSPECT SIGNAL GENERATOR (PICKUP COIL) RESISTANCE.



- Using an ohmmeter, measure the resistance between the terminals.





- If the resistance is not as specified, replace the distributor housing assembly.

7. REINSTALL IGNITION COIL DUST COVER.
8. REINSTALL ROTOR.
9. REINSTALL DISTRIBUTOR CAP.
10. RECONNECT DISTRIBUTOR CONNECTORS.




NOTE: With the distributor removed, also inspect the shaft bearing surfaces by turning the shaft and see if it feels rough/tight or worn/loose.
- If any problem is detected, replace the distributor housing assembly.