[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:
>This is a multi-part message in MIME format.
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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:
>
>
>     This is a multi-part message in MIME format.
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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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>   ____
>
>   The last time anyone listened to a Bush they wandered in the desert for
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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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