Camshaft Position Sensor: Testing and Inspection

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 without disconnecting high-tension cords.
2. Remove rotor.
3. Inspect air gap.

Air Gap Measurement:

- Using SST (G1 and G2 pickups) and a feeler gauge (NE pickup), measure the air gap between the signal rotor and pickup coil projection. SST 09240-00020 for G1 and G2 pickups.

Air gap: 0.2 - 0.5 mm (0.008 - 0.020 in.)

- If the air gap is not as specified, replace the distributor housing assembly.
4. Disconnect distributor connector.
5. Inspect signal generator (pickup coil) resistance.

Ohmmeter Connection:

- Using an ohmmeter, measure the resistance between terminals.

Pickup coil resistance (Cold):
G1 and G(-): 126-200 Ohms
G2 and G(-): 125-200 Ohms

Pickup coil resistance (Hot):
G1 and G(-): 160-235 Ohms
G2 and G(-): 160-235 Ohms

- If the resistance is not as specified, replace the distributor housing assembly.
6. Reconnect distributor connector.
7. Reinstall rotor.
8. Reinstall distributor cap.