Any way to check coil?
Registered User
Joined: Jul 2001
Posts: 1,742
From: Langley B.C. Canada
Originally posted by 1996 | Z28 SS
Man... up here sucks for getting car stuff. I paid 288 American for my K&N CAI... ugh! But it's so much easier to just run over to the store and pick these parts up right there.. no wait. But anyways... I really need to know if my problem is the coil. Thanks
Trevor
Man... up here sucks for getting car stuff. I paid 288 American for my K&N CAI... ugh! But it's so much easier to just run over to the store and pick these parts up right there.. no wait. But anyways... I really need to know if my problem is the coil. Thanks
Trevor
Registered User
Joined: Dec 1969
Posts: 27,727
From: Little Rock, AR
There is info on doing a resistance test on my site. This test would be more useful if the coil was dead, though. I feel it is possible for it to show continuity, but still act up at times. It is a lot more difficult to check the voltage output of the coil. If it only acts up in damp conditions, I would say you have a connection problem.
Registered User
Joined: Jan 2002
Posts: 3,007
From: USA
Originally posted by Fatdog
One easy way to see if the coil is going south is to pull up to a white garage door at night and with the headlights on,see if they flicker when you give it a little gas.If they do a dance, (the lights),replace the coil.(Go stock).My02
One easy way to see if the coil is going south is to pull up to a white garage door at night and with the headlights on,see if they flicker when you give it a little gas.If they do a dance, (the lights),replace the coil.(Go stock).My02
Uhhh.. . . are you talking about how our voltage goes from ~14 to ~16 at higher RPMs ? Because that will make the lights brighter.
Registered User
Joined: Dec 1969
Posts: 4,950
From: San Diego, CA
I helped my friend fix his '96 TA...it turned out to be a bad coil. The stock coil wasn't open and provided a spark to the spark plugs (plug wire would arc to ground). We bought a tool that had an adjustable gap to verify the spark was weak. A good coil should be able to jump a gap that's greater than a half an inch.
I ran an MSD coil on my 95 Z28 with a Crane ignition. The MSD crapped out in about 10K miles. I'm presently running a Crane PS-91 coil for 30K + miles with no issues.
I ran an MSD coil on my 95 Z28 with a Crane ignition. The MSD crapped out in about 10K miles. I'm presently running a Crane PS-91 coil for 30K + miles with no issues.
Thread Starter
Registered User
Joined: Jan 2003
Posts: 449
From: Toronto, Ontario
Ok.. great, thanks guys for all the info and omg 275 for your K&N??? From where? Is it a chain store? I got mine from Karbelt... they are charging a fortune for things.... but it's the only place around!! Besides there all I have is buying things from the states... 
Trevor
Trevor
Registered User
Joined: May 2001
Posts: 609
From: Quad Cities
I saw a post a while back where some shop put down ~700rwhp on the stock coil. No reason to go aftermarket 
For the price of a coil..its worth just replacing it to see if the problem is resolved. Make sure to do your wire as well!!!
For the price of a coil..its worth just replacing it to see if the problem is resolved. Make sure to do your wire as well!!!
Registered User
Joined: Apr 2003
Posts: 18
From: Kansas City, MO
My 94Z had the very same issues. Although, my cruise quit working and the FM radio wouldn't pick up anything...As it turned out, the coil wire had backed off the HV post so it was trying jump multiple gaps.
Last edited by Slamhound; Sep 30, 2003 at 04:51 AM.
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