Can a VR and ignition capacitor be tested with ohm meter - Team Camaro Tech
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post #1 of 5 (permalink) Old Feb 26th, 12, 01:27 PM Thread Starter
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bigsteve
 
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Can a VR and ignition capacitor be tested with ohm meter

Can a VR and ignition capacitor be tested with ohm meter to see if they work?
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post #2 of 5 (permalink) Old Feb 26th, 12, 04:09 PM
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Re: Can a VR and ignition capacitor be tested with ohm meter

Sort of. You can put the leads on and see if it slowly or quickly builds to maximum (depends on the capacitance rating). Reverse the leads and it should build again. All you can really get is an indication that it's somewhat holding a charge.
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post #3 of 5 (permalink) Old Feb 27th, 12, 08:35 AM
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Re: Can a VR and ignition capacitor be tested with ohm meter

What Aaron describes is about the best you can do. Some DMM's have a capacitance checker, but even that is of limited use. Those caps are under severe duty and may check good but fail in circuit. So other than identifying a shorted cap, you just about have to put it in circuit and see if it works.

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post #4 of 5 (permalink) Old Feb 27th, 12, 02:54 PM Thread Starter
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Re: Can a VR and ignition capacitor be tested with ohm meter

Thanks
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post #5 of 5 (permalink) Old Feb 28th, 12, 11:23 AM
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Re: Can a VR and ignition capacitor be tested with ohm meter

One more thought on "ignition capacitors". You're probably talking about the noise suppression cap that attaches to the positive coil terminal. However, if you're talking about the breaker point "condensor", then there are notable symptoms when that cap fails. The engine will run reasonably well at idle, but at higher RPMs it will miss, perform like crap.

Dave
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68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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