[urq] Pre-Ignition Problems with early urq
cbrooks22 at cox.net
Mon Apr 5 01:51:56 EDT 2004
Did you check the idle switch? The timing control unit does not initiate
until the idle switch is open..
----- Original Message -----
From: "Robin Gilmour" <quattroguy83 at yahoo.com>
Sent: Sunday, April 04, 2004 10:46 PM
Subject: [urq] Pre-Ignition Problems with early urq
> Dear AudiFans:
> My 83 urq has started pinging under very low levels of
> boost. Can anyone help.
> 1) It may be a fuel problem but I would assume it was
> not as it has a fairly fresh tank of 91 octane.
> 2) I replaced the hose from the intake manifold to
> the computer at first glance it appeared to be leaking
> at the "y" to the boost gauge.
> 3) I checked the hoses from the manifold to the fuel
> pressure regulator, they seem fine.
> 4) I checked the full throttle switch and it seems
> 5) I changed out the computer as I have a spare.
> 6) It would appear that the advance /retard function
> of the ignition is not working. The system seems to
> be at full advance. In fact the engine seems very
> powerful under low throttle settings until the boost
> starts and then it pings very badly.
> The car is undrivable until this is repaired. I need
> Robert Gilmour
> 83 urq
> 83.5 urq
> 85 4000 Racecar
> 97 A6
> 01 S4
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