How do you test an electronic ignition module?

How do you test an electronic ignition module?

Connect the ground lead from the 12-volt test light to the negative terminal on the ignition coil. Have your partner crank the engine over several times. Your test light should flicker on and off. If so, your module is working properly and no further testing is necessary.

Does a Mallory Unilite distributor need a ballast resistor?

Use Mallory’s coil for electronic ignition. You DO need an external ballast resistor, be it a ceramic edition or the proper resistor wire. If you do NOT use that, you will harm the internals of the distributor.

How do you diagnose ignition problems?

Here’s How To Diagnose Your Ignition Issues

1. Verify Lack of Spark.
2. Check for Any Obvious Issues.
3. Probe for Power.
4. Double-Check Firing Order.
5. Double-Check Initial Timing.
6. Test/Inspect Spark Plugs.
7. Test Spark Plug Wires.
8. Check for Spark at Coil.

What would cause an ignition control module to fail?

The common cause of one driver/transistor failing is a shorted ignition coil primary winding. This is a winding of wire within the ignition coil where each loop is separated by a very thin plastic coating.

What causes ignition module failure?

When the airflow sensor wire is dirty, it does not provide enough information for the ignition module to work properly, or the airflow sensor will send intermittent information to the ignition module, causing starting problems. The airflow sensor wire can be cleaned with an engine cleaner or electronics cleanser spray.

Why is my ignition coil not firing?

There are a few reasons for no spark, new coil pack could be defective, crank sensor, ignition module or bad wire in primary circuit, faulty ECM/PCM. You may have to have a good technician have a look, diagnose and estimate repair.

How do you troubleshoot a Mallory Unilite distributor?

How to Troubleshoot a Mallory Unilite Distributor With No Spark

1. Locate the coil, which will always be close to the distributor, and see if it is a 12- or 6-volt coil.
2. Check the positive side of the coil for the proper voltage, be it 12 or 6 volts.
3. Remove the distributor cap and pull off the rotor.