Pick-Up Coil/Camshaft Position (CMP) Sensor

Measure pick-up coil/CMP sensor air gap. If gap is not .008-.016" (.20-.40 mm), adjust CMP sensor or replace distributor. Using DVOM, measure pick-up coil/CMP sensor resistance at appropriate distributor harness connector terminals. See appropriate wiring diagram in WIRING DIAGRAMS article. Pick-up coil/CMP sensor resistance should be 185-275 ohms at 14-122°F (-10-50°C). Replace CMP sensor if resistance is not within specification.