How many ohms does an ignition coil have?
Connect your multimeter to the positive terminal or pin of your coil, and to the high output terminal that goes to the spark plug. Most ignition coils should have a secondary resistance falling somewhere between 6,000 to 10,000 ohms;however, refer to manufacturer specifications for the correct range.
How to test primary resistance of ignition coil?
To test the primary resistance on the coil, grab a multimeter and attach the positive probe to the positive terminal on the coil. Then, attach the negative probe to the negative terminal. Set the multimeter to 200 ohms in the resistance category and take the reading. Typically, the primary resistance should be somewhere between 0.4-2 ohms.
How is the primary resistance of a MSD coil measured?
The primary resistance is measured with the probes on the positive and the negative terminals of the coil. This value will vary between coils, but a rule of thumb on MSD’s coils would be between .03 – .7 ohms.
Can a coil be checked with an ohm meter?
Also, due to the number of different coil variations available, it makes it difficult for specific specifications. If you have an ohm meter, you can check the primary and secondary resistance of the coil. First, be sure to have the ignition turned off and the coil disconnected from the ignition.
What should resistance reading be on ignition coil?
Generally speaking, most automotive coils will have a resistance reading of about .7 – 1.7 ohms for the primary winding and 7,500 – 10,500 ohms for the secondary winding. Position the leads of the ohmmeter on the poles of the primary coil. The distributor will have three electrical contacts – two on either side and one in the middle.
Also, due to the number of different coil variations available, it makes it difficult for specific specifications. If you have an ohm meter, you can check the primary and secondary resistance of the coil. First, be sure to have the ignition turned off and the coil disconnected from the ignition.
The primary resistance is measured with the probes on the positive and the negative terminals of the coil. This value will vary between coils, but a rule of thumb on MSD’s coils would be between .03 – .7 ohms.
How do you measure resistance on a multimeter?
Press the relative (REL) button to set the multimeter to a specific reference value. Measurements above and below the reference value are displayed. The significance of a resistance reading depends on the component being tested. In general, resistance of any one component varies over time and from component to component.