[s-cars] //S4cylinder (#4 cylinder misfire)

[Mark Strangways]

Don't worry Mike, Jim is doing the leg work for you ;-)

Sorry Jim...

Really the list is the best place to get answers, WHEN not IF Jim finds the 
source of the problem he will share his findings and it will add to the 
collective.

Now don't go tempting them Audi gods any though.

Mark S
----- Original Message ----- 
From: "Mike Claire" <mike.claire at gmail.com>
To: "Scar" <s-car-list at audifans.com>
Sent: Friday, January 20, 2006 9:44 PM
Subject: Re: [s-cars] //S4cylinder (#4 cylinder misfire)


Am I the only one this story just scares the hell out of?  If this was me my
car would be basically totalled.  No way I could do all this, and I couldn't
pay somebody to do it either!  Do I tempt the gods by admitting fear?


Mike

On 1/20/06, AUDIJIM at aol.com <AUDIJIM at aol.com> wrote:
>
> Bob,
>
> Starts on all 5 cylinders for about a second and a half, then drops #4
> cyl. I
> can unplug #4 fuel injector and get no change in my bad idle. I tried
> swapping fuel injectors, no help. New coil pack at #4, no help. New POS,
> no help. I
> thought it was a possible lifter, changed all 20 lifters and checked for
> broken
> valve spring, no help and no broken valve springs. New plugs, new boots,
> no
> help. New injector inserts, new O-rings, new fuel filter, no help. Tried
> swapping ECU's, no help. Compression test good. Leak down test good. The
> only thing
> I haven't checked is the wiring to the POS from the ECU. That's tomorrow.
> After the engine runs for a while, it will smooth out and idle sort of
> nice. If I
> blip the throttle, it will loose #4 again and then recover. At highway
> speeds,
> you can feel the engine running a little rough and full power isn't there.
> Sometimes it runs well at highway speeds and pulls like a freight train,
> but
> after I let off, I can feel that it lost the cylinder again.
>
> Jim
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