MkIV Golf GTi (1.8t 150bhp) - revs 'hunting'

[groomi]

I'm sure this is a common problem and I think we've had it before but it was sorted at a service and I can't remember what the issue was.

So the revs are hunting at tickover between 800-2000rpm which is also making it awkward to drive in traffic as it affects the engine braking and even momentarily 'drives' the car against your will (unless depressing the clutch ofcourse).

Any idea what the problem is? I guess it's a sensor of somekind?

[DJWeasel]

Mine has the same problem at the minute, ive been told that the Throttle body needs re-aligning. can be done via vag-com.

Edited by DJWeasel on Sunday 28th February 12:17

[Flatshift]

In my experience it's been either a coolant temp sensor or the MAF. Can you unpplug the MAF to try it for a couple of days?

Andy

[Greendubber]

Try something easy first, clean the throttle body out with some intake cleaner....you'd be shocked at how cruddied up they can get.