Location

The ignition control unit is located on the left side of the engine compartment.

Checking

1. Turn ignition off. Attach volt meter to ignition coil primary terminals. Disconnect Hall Effect sender wire harness connector from distributor. Turn ignition on.
2. While observing volt meter reading, attach center terminal of connector to ground for 3 seconds. Voltage reading should briefly increase to 4.5 volts. If voltage reading did not increase, check wiring for short or open circuit. If wiring is okay, replace ignition control unit.