Testing a Marelli Style Electronic Ignition Coil - International Auto Parts

Today we're going to go over the Morelli ignition systems that came equipped on 79 to 85 Fiat spiders it would also include the pendant Farina spiders from 83 to 85 a similar system is also found on the launch of ADA's Fiat Bravo's and alpha male spiders from 1881 what we got here is a coil a heat sink and ignition modules on the bottom and then what would plug into the module this end right here would be your pickup and. This is mounted inside the distributor and later on I'm going to show you how to replace one of these also first thing we're going to do is I'm going to show you how to test the coil whenever you test a call you have to check primary resistance which is from positives negative and then secondary which is either positive or negative to the center terminal you have to make sure all the wires disconnected.

Any other wires you need to take off make sure you mark them.

You know which is positive and which is negative and these wires here actually go down and plug into the top of the module also it's easy to remember positive is marked on one side and negatives marked on the other side I know you can take your own meter set it on the proper setting you could check the primary resistance first which once again is these two terminals on this coil we're getting one point eight which is a good reading then you're going to select the correct category on your meter here with your secondary secondary is from either the positive to the center or the negative centers you can measure either one you can measure both you should get the same read and this coil is measuring out at fifteen thousand dollars. This is a lot higher coil than what would it came on the car stock which is a good thing.

Testing a Marelli Style Electronic Ignition Coil - International Auto Parts

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