Sparking Test
- Disconnect high tension wire at distributor cap and hold approximately 1/2" (12 mm) from engine block. Crank engine. If spark occurs, check rotor and distributor cap. Ensure spark is reaching spark plugs.
- If no spark occurs, disconnect connector at distributor. Connect a jumper wire to pin "A" in electronic control unit connector. See Fig 1. With ignition "ON", touch pin "C" with other end of jumper wire and check for spark.
- If no spark occurs, proceed to step 4). If spark occurs, touch a jumper to pin "B" and check for spark. If spark occurs, try a new Hall sender in distributor. If there is no spark, replace electronic control unit.
- If no spark occurred in step 2, check wire and connectors carefully. If no fault is found, try a new electronic control unit. If there is still no spark, try a new ignition coil.