Audi Heal Thyself!
passat_ts at hotmail.com
Wed Aug 27 15:19:03 EDT 2003
Me too, but things happen, like the lad dropped a tool next to the sensor
saw it loose and just tighted to the torque of the day.
Another thing that came to my mind is a problem in the ECM.
Invariably all the self healing problems that happened to me were all
electric related and sooner or later they came back until I find and fix the
The most recent was with the water temperature sensor in a B5. The gauge
goes to zero after the warm up. I took to the dealer (was under warranty)
and the sensor started to work a mile from it. Needless to say that I ended
up changing it myself later in life. I'm glad it's a $7 part.
>From: David <duandcc_forums at cox.net>
>To: "passat TS" <passat_ts at hotmail.com>,quattro at audifans.com
>Subject: Re: Re: Audi Heal Thyself!
>Date: Wed, 27 Aug 2003 10:04:22 -0400
>I highly doubt the shop retorqued the knock sensor. They didn't even know
>it was pinging and the seal work they did is nowhere near the knock sensor.
> > From: "passat TS" <passat_ts at hotmail.com>
> > Date: 2003/08/27 Wed AM 09:59:42 EDT
> > To: duandcc_forums at cox.net, quattro at audifans.com
> > Subject: Re: Audi Heal Thyself!
> > Dave,
> > IMHO, there are couple of things that could cause what you described.
> > 1. The knock sensor was not at the spec torque and the guy at the shop
> > tighted it up.
> > 2. You have a wiring problem between the knock sensor and the ECM. The
> > contact was redone by accident during the gasket work.
> > The more power you see make me think the the #1 is probably the case.
> > the ECM was receiving false knock reports and retarding the timing.
> > Later,
> > Carlos.
> > >From: David <duandcc_forums at cox.net>
> > >To: quattro at audifans.com
> > >Subject: Audi Heal Thyself! Date: Wed, 27 Aug 2003 9:10:07 -0400
> > >
> > >Has anybody else experienced a spontaneous healing? I'm going to risk
> > >angering the Audi Gods and tell you of my situation. Maybe it won't
> > >off the Audi Gods because I'm am singing their praise and praising my
> > >Hope so...anyway...
> > >
> > >My CGT has had a problem with pinging since the day I bought it, or at
> > >least it sounded like pinging to me (others have suggested it could be
> > >distributor rattle). And I have been getting an intermitant CEL. It
> > >goes away with a restart and the engine seemed to behave the exact same
> > >with the light on or off.
> > >
> > >I did everything I could think of short of taking it to an Audi Dealer
> > >and/or screwing with the mixture (I have no experience doing mixture
> > >on anything other than a SBC and you can set those by sound). No vacuum
> > >leaks, fresh tuneup, checked ignition timing , checked cam timing....
> > >
> > >Well, she has healed herself. About 2 weeks ago the pinging just went
> > >one day. It was just after having the leaking crank seal fixed. I took
> > >car in for a timing belt job (along with WP, cam seal, roller, etc).
> > >after the TB job I had a pretty decent oil leak. The shop ened up
> > >the crank seal and filling in a chip on the oil pump where the seal
> > >in. Oil leak fixed. It was soon after this that I noticed that she
> > >pinging. Did it happen at the exact same time as the seal replacement?
> > >sure, but it was around the same time. Anyway, she's no longer pinging,
> > >seems to have gained a significant amount of power. She running faster
> > >ever before. Sort of like a scalded cat. But this actually worries me.
> > >long as this isn't a sign of some huge major failure coming up...I'm
> > >not going to complain. Anybody got a clue why the pinging would
> > >go away and the car feels so peppy?
> > >
> > >Dave
> > >2002 Jetta 1.8T (hers)
> > >1993 RX-7 R1 (weekend play toy, soon to be for sale)
> > >1987 CGT Special Build 2.3
> > >in SE Virginia
> > >
> > _________________________________________________________________
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