[urq] Pre-Ignition Problems with early urq

[Martin Pajak]

Robin,

I would check the pressure transducer in both of the computers... I've seen enough of these fail to say that you can never assume the other one is good... sounds like the problem to me BTDT.
BTW You'll miss the low end power once the problem is fixed :(

Oh yeah, 

---------- Original Message ----------------------------------
From: Robin Gilmour <quattroguy83 at yahoo.com>
Date:  Sun, 4 Apr 2004 22:46:34 -0700 (PDT)

>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
>OK.
>
>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
>help?
>
>Regards
>
>Robert Gilmour
>83 urq
>83.5 urq
>85 4000 Racecar
>97 A6
>01 S4
>
>
> 
>
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