Idle Speed - TFSi. Can it be altered?

[boffin486]

Question as per title really - my TFSi (BUL) idles lumpily - it actually makes the car shake.
I think the idle speed is a bit too slow (around 800 revs) as a very tiny increase with the throttle pedal smooths things out. Therefore, I would like to increase it a little permanently.
Is this something that can be done with VCDS?

 

[Charlie Farley]

That RPM is spot on, mine sits dead on 800 when warm.
check you don't have a small vacuum leak somewhere as that will cause a lumpy idle, it doesn't need to be big leak either.
also check you PCV is working properly, another source for lumpy idling.

 

[Charlie Farley]

Question as per title really - my TFSi (BUL) idles lumpily - it actually makes the car shake.
I think the idle speed is a bit too slow (around 800 revs) as a very tiny increase with the throttle pedal smooths things out. Therefore, I would like to increase it a little permanently.
Is this something that can be done with VCDS?

do a vcds real-time check with a warm engine and see what rpm it is idling at.

 

[boffin486]

Thanks for the tips Rob - I'll have a looksee.

 

[Sidrick]

Have you looked into PCV issues? Mine was a bit like that before I replaced the valve and after it was spot on at 800.