Camshaft Position Sensor: Testing and Inspection

Measure

Tool Required:
J39200 Digital Multimeter

NOTICE: The term "cold" refers to temperature ranging from -10° C (14° F) to 50°C (104° F). The term "hot" refers to temperature ranging from 50° C (104° F) to 100° C (212° F).

Measuring Camshaft Position Sensor Resistance:

1. The resistance of distributor connector C1 when cold, between terminals 3 and 6, using a J39200. If the camshaft position (CMP) sensor resistance is not between 185 and 275 ohms, replace the distributor housing.

2. The resistance of distributor connector C1 when cold, between terminals 2 and 5. using a J39200. If the CMP sensor resistance is not between 370 and 550 ohms. replace the distributor housing.

3. The resistance of distributor connector C1 when hot, between terminals 3 and 6, using a J39200. If the CMP sensor resistance is not between 240 and 325 ohms. replace the distributor housing.

4. The resistance of distributor connector C1 when hot, between terminals 2 and 5. using a J39200. If the CMP sensor resistance is nor between 475 and 650 ohms, replace the distributor housing.

Measuring Air Gap:

5. Air gap between the signal rotor and camshaft position (CMP) sensor. If the air gap is not between 0.2 - 0.4 mm (0.008 - 0.016 inch), replace the distributor housing.