Non-URs TT stumble

[Cody Forbes]

5 years is a long time on 1.8t coils. The coolant temp gauge is driven by a separate sensor than the ECU. Are you sure the codes aren't for the ECU coolant temp sensor? That could certainly be the culprit.

-Cody
(Sent from my phone, if a word doesn't fit blame Siri)

On Mar 17, 2012, at 3:57 PM, Brian Pleet <bpleet at telusplanet.net> wrote:

> Not sure where to go with this question, I'm part of the TT mailing list,
> but don't see any activity.
> 
> My 02 TT, 1.8t at idle, will occasionally (once or twice and hour) stumble
> for a split second. I can see the tach go down fractionally, then it
> resolves itself. No other symptoms.
> 
> I replaced the head 6 months ago after the timing belt broke (Kudo's once
> again to Audi Canada to paying $3,200 to reimburse all costs on a 9 year
> old  engine with 153k km). I also just noticed that the coolant temperature
> gauge is working sporadically and generates a DTC.
> 
> Could the two be related? No other codes generated. Coils were replaced on
> the recall 5 years ago. Plugs were replaced during the engine rebuild.
> 
> -- 
> Brian Pleet
> bpleet at telusplanet.net
> 95.5 S6
> 90 A90Q
> 02 TT Roadster
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