Introduction

If you own a vehicle with a 3-pin ignition coil, then it’s important to know how to test it using a multimeter. A faulty ignition coil can cause a variety of problems, including engine misfire, poor fuel economy, and difficulty starting the engine. In this article, we’ll walk you through the steps on how to test a 3-pin ignition coil with a multimeter.

Step-by-Step Guide

Step 1: Safety First

Before you begin testing your ignition coil, it’s important to take proper safety precautions. Make sure your vehicle is parked on a level surface with the engine turned off. Always wear protective gloves and goggles when working on your car.

Step 2: Locate the Ignition Coil

The ignition coil is typically located near the engine block or on the firewall. Consult your vehicle owner’s manual or a repair manual for the exact location.

Step 3: Disconnect the Ignition Coil

Disconnect the electrical connector from the ignition coil. Use a multimeter to check the resistance of the primary and secondary windings.

Step 4: Testing the Primary Winding

Set your multimeter to the ohm setting and touch the positive lead to the positive terminal of the primary winding and the negative lead to the negative terminal. The reading should be between 0.4 and 2 ohms.

Step 5: Testing the Secondary Winding

Set your multimeter to the ohm setting and touch the positive lead to the positive terminal of the secondary winding and the negative lead to the negative terminal. The reading should be between 6,000 and 15,000 ohms.

Step 6: Check for Continuity

Set your multimeter to the continuity setting and touch the positive lead to the positive terminal of the primary winding and the negative lead to the positive terminal of the secondary winding. There should be continuity between the two terminals.

Step 7: Reconnect the Ignition Coil

Once you’ve completed testing the ignition coil, reconnect the electrical connector to the ignition coil.

Frequently Asked Questions

Here are some frequently asked questions related to testing a 3-pin ignition coil with a multimeter:

• What is an ignition coil?
• What are the symptoms of a faulty ignition coil?
• Can I test a 3-pin ignition coil with a multimeter?
• What readings should I look for when testing the primary and secondary windings?
• What is continuity and why is it important when testing an ignition coil?

Conclusion

Testing your 3-pin ignition coil with a multimeter is a simple process that can save you time and money in the long run. By following the steps outlined in this article, you’ll be able to determine whether your ignition coil is functioning properly or if it needs to be replaced. Remember to always take proper safety precautions when working on your vehicle.