Distributor: Testing and Inspection

In the electronic engine control system utilized on this vehicle, two signals generated by the distributor crank angle sensor are used by the ECU in its calculations for various outputs. When problems with these signals are detected, malfunction codes are set and can be retrieved from the on-board diagnostic system.

A faulty "Ne" signal (engine speed) will set malfunction code 02. A problem with the "G" signal (crankshaft position) will set malfunction code 03. Refer to COMPUTERS AND CONTROL SYSTEMS.

ON-VEHICLE SPARK TEST

1. Disconnect coil lead from distributor cap.
2. With insulated pliers, hold wire approximately 0.20 - 0.39 in (5 - 10 mm).
3. Crank engine and verify that a strong blue spark is visible.