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if my car is stumbling and misfiring at wot is that most likely a POS?

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Old 06-22-2005, 10:45 PM
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best way to rule this out?
Old 06-22-2005, 10:53 PM
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Default Borrow a known to be good coil pack. The problem could have something to do...

with your lovely bling work. What might have happened that if you were messing with the wires and/or removed the coils from the coil pack holder (the "20v turbo" bit), there could be a broken wire and/or a bad ground, etc. Borrowing a good coil pack would be the easiest way to confirm the problem. Otherwise, you have to test the coils one at a time. There was a procedure posted just the other day on Audifans S-car list.

Dave F.
Old 06-23-2005, 03:51 AM
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Even new plugs can be bad - don't rule them out just because they are new - start simple
Old 06-23-2005, 05:43 AM
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Default you've read all this before i'd guess?:

<ul><li><a href="http://www.sjmautotechnik.com/trouble_shooting/S4_Ignition.htm">le click</a></li></ul>
Old 06-23-2005, 06:08 AM
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Default That's what you're supposed to do, wienerboy.

Treat it like it's going to be treated. The rings will seat when they want to.
Old 06-23-2005, 07:30 AM
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true im going to get new ones today. i think my ignition switch is on its way out
Old 06-23-2005, 08:15 AM
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Default Re: its definately intermittent thats what annoying sometimes it will be fine then sometimes it will

I've had all the ignition issues with our vehicles except for plugs. I would hedge a bet on a coil. Buy a cheap spark tester, pull your coils off, one by one insert the spark tester in each coil while cranking the car over. A bad coil will show up as a weak spark (yellowy orange) where as the good coils will show up as a white blue spark. Just a note: the spark tester will not actually click right in to the coil boot but try and push it as far down as possible. A weak coil will show up very easily because of the spark having to jump 2 gaps.

BTW Emre, your posts suck.
Old 06-23-2005, 09:07 AM
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Having the SAME problem :\
Old 06-23-2005, 06:36 PM
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Default Re: if my car is stumbling and misfiring at wot is that most likely a POS?

I had this same problem recently.: replaced all the plugs, connectors, and the #5 coil pack. Still hesitated/stumbled. Then, following relentless advice on this forum, I got set up to pressure test the intake system. But when going over all the hoses, I discovered the turbo outlet hose clamp had slipped slightly; that's where the boost was going. Once, corrected, engine ran fine. My lesson: check and/or pressure test the hoses/lines first.
Old 06-23-2005, 10:10 PM
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it was the plugs car is a goddam animal now
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