96 A6Q Intermittent start

Michael Hopton Michael at siliconoptix.com
Tue May 1 21:12:18 EDT 2007

I would check the timing senders, a lot of coils fail when hot
and close circuit after they cool. RPM and timing pin are 
possibles, the Cam position sender on the ur-S4/S6s are
another known failure. Car starts fine and runs fine but
won't restart when hot, the ECU only checks the Cam 
Position Sender on start up to synchronize crank and cam.
cheers, Mike


From: 200q20v-bounces at audifans.com on behalf of Eric Huppert
Sent: Tue 5/1/2007 8:18 PM
To: quattro at audifans.com; 200q20v
Subject: 96 A6Q Intermittent start


Sorry for the post here, but think the type 44 gets a tad more traffic!

Had bought, rehabbed and sold ($1k in parts) a clean 96 A6 Avant in the
fall. Was sold locally to a guy I know...

He just called and they're having a intermittent start issue. Occasionally
car won't start (when hot), but if allowed to sit will start after a while.
Does crank, but doesn't start. Tonight they had to let it sit for 45 minutes
before it would fire.

Going to run VAG Com tomorrow morning to and see if that shows any codes...

don't know if it's fuel or ignition related, hopefully able to narrow it
down in the morning once he gets here!

Any BTDT's? Going to surf around and see what I can find, but figured I'd
ask around first.


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