Testing ignition condenser

Gotta love that wiring . . .
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JohnMc
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Your car is a: 1970 Fiat 124

Testing ignition condenser

Post by JohnMc »

I just tried testing the ignition condenser using an ohm meter. I got no difference when connecting the red test probe to the "hot wire" of the condenser and the black test probe to the body of the condenser.
Is this the proper way to do this?
Comments please.
Thanks.
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Odoyle
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Joined: Mon Dec 01, 2014 10:06 pm
Your car is a: 1983 Pinafarina Spider
Location: CA

Re: Testing ignition condenser

Post by Odoyle »

Try placing the black probe on the wall of your engine bay, and switch the dials around on your volt meter until you get a reading.
JohnMc
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Your car is a: 1970 Fiat 124

Re: Testing ignition condenser

Post by JohnMc »

Thanks I will try it.
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divace73
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Joined: Sun Oct 17, 2010 5:59 am
Your car is a: 1980 Fiat 124 Spider Silver
Location: Sydney, Australia

Re: Testing ignition condenser

Post by divace73 »

what are you measuring the condenser in? Ohm, F etc?
Cheers David
-=1980 silver Fiat 124 Spider=-
If you want to see pics of my car (and other random stuff) >>click here<< OR
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JohnMc
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Your car is a: 1970 Fiat 124

Re: Testing ignition condenser

Post by JohnMc »

I was trying to see if the condenser was ok - but it was a faulty wire to the distributor itself. Thanks
bluespider262
Posts: 160
Joined: Mon May 25, 2015 11:14 am
Your car is a: 1979 Spider

Re: Testing ignition condenser

Post by bluespider262 »

A condenser is a capacitor. It should read some smallish value probably less than 1uf when your meter is set to measure capacitance (cheaper meters don't have that function) and should be open circuit lead to case.

Your engine should run without it so if you believe it is causing an issue just disconnect the lead temporarily.

Its essentially there to maximize the life of the points contacts on non-electronic ignitions. My guess is Fiat left it on the electronic cars just as noise suppression and probably isn't needed in 79+ cars unless you have a CB radio, etc. For instance, the GM ignition module the electronic cars utilize did not have condensers in their original GM applications, at least not since the early 80's.
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