idle troubleshooting on 1,8T Audi engine

[Fabryce]

We have found that after some  mileage the throttle body plate will develop
some coating on it, in some cases causing this erratic idle.

Clean throttle body and see if it helps.

Fabryce Kutyba
Hartmann  Motorsports
www.hartmann-motorsports.com
949-475-2500
----- Original Message ----- 
From: "s.roul" <s.roul at free.fr>
To: <quattro at audifans.com>
Sent: Thursday, May 13, 2004 12:25 PM
Subject: idle troubleshooting on 1,8T Audi engine


> Hello
>
> my 1,8T engine (code name AMK) has now got a unstable idle (changing
> between 720 and 760 rpm) instead of a rock stable idle I got before.
>
> Engine has now got 40 000 miles, I don't know what I should do... I(ve
> already changed the MAF sensor but changed nothing to the idle
> trouble.
>
> I've seen on my VAG-COM that on channel 1, the lambda factor is always
> changing between -3,9 and + 3,6... is it normal?
> the lambda factor on channel 6 is rock stable at 1,6%.
>
> Best regards,
>  s.roul                          mailto:s.roul at free.fr
>
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