[s-cars] misfire
Mihnea Cotet
mik at info.fundp.ac.be
Sun Sep 14 23:49:54 EDT 2003
Hmmm, what about first checking the ground connections of the coil packs?
At 14:32 14/09/2003 -0400, you wrote:
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>It would drop a cylinder at all loads and speeds one moment, then it would
>run fine everywhere.
>
>P
> ----- Original Message -----
> From: Robert Myers
> To: Philip Mische
> Sent: Sunday, September 14, 2003 2:26 PM
> Subject: Re: [s-cars] misfire
>
>
>
> Probably #4 coil. How did it behave? Started missing only under boost
> but would cruise OK and then slowly get worse?
>
> At 02:10 PM 9/14/2003, you wrote:
>
>
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> I've got a problem with my 95.5 S6. Here's the setup:
> a.. In Feb I had a POS channel go bad. I swapped over the wires to
> use the spare channel and things were fine.
> b.. A few weeks later came another misfire. When I went to
> diagnose it the motor went back to hitting on all 5 again, so I couldn't
> figure which cylinder had the problem. I figured I was losing another
> POS channel, so I bought a new one from a lister.
> c.. Over the past few months the misfire would pop up again, then
> quickly disappear, usually after I turned the car off and then started it
> back up again. Like running a Microsoft based car.
> d.. Yesterday the misfire came, but this time it didn't
> leave. Using the remove-the-fuel-injector-plug method I determined it
> was #4. That made sense, since the POS for #4 was the one that had the
> bad channel from Feb. I found the new POS I'd purchased months ago and
> popped it in, and guess what? No change! I swapped out the other POS
> just to be sure, again no change. Darn.
> e.. Checked the spark plugs, they were all tight. I changed the #4
> spark plug and the miss was still there.
> Soooo, what's the next likely place to look?
>
> Thanks in advance,
>
> Phil
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>
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>
> Bob
> *****
> Robert L. Myers 304-574-2372
> Rt. 4, Box 57, Fayetteville, WV 25840 USA WV tag Q SHIP
> '95 urS6 Cashmere Grey - der Wunderwagen ICQ 22170244
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