MySTG3S4

Yesterday in traffic the car started to freak out, the RPM at idle would hunt from little under 1k to 1,500 RPM. It kept doing this all day, regardless of the clutch in or out.

When I got home I looked for any codes and didn't find anything, I cleared the ECU and tried to lower the Idle via Vag and even at the lowest the car still would idle at about 1,100 RPM. The lowest it got was 1020 and it would not stay there.

I went for a drive and logged the car. Did a FAT run and it looks fine.

But the RPM is still too high at idle and if I let go of the gas when the car is in gear the car will not slow down as it would before. The RPM basically stays at 2K.

It feels as if the car is still hunting even when I am driving it.

Here is the LTFT after 20 miles. At idle the pressure with the clutch out is 20-21 PSI/inHG and with the clutch in 19.2 PSIinHG


<img src="http://pictureposter.audiworld.com/119115/ltfl.jpg">

<img src="http://pictureposter.audiworld.com/119115/rpm.jpg">

<img src="http://pictureposter.audiworld.com/119115/acceleration.jpg">


TIA

reefer_bob

Did you try a throttle body adaptation? Unplug the MAF...

MySTG3S4

Yup... tired both. Ended up pulling the ECU for 15 min.. so far so good.