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1990cq20v Hesitation

In message <5d9f8f58.347c65e7@aol.com> Mpbier writes:

> I was reading your message on the Quattro List about your 4000rpm cutout.
> I have a similar problem with my coupe (1990 20v ...

> I've had it into my mechanic in Berkeley a few times, and he has checked the
> timing, knock sensors, O2 sensor, etc., but nothing seems to be amiss. The
> latest theory is that since the lifters make a lot of noise, they may be
> interfering with the normal knock sensor operation.

I think you have found one of a world wide fraternity - the 'guessing mechanic'.

Ask him what he found when he pulled the codes.  If he doesn't know what you're 
talking about, don't turn your back on him as you leave.

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club