rough idle and struggling at low revs in high gear

[whit]

my car's running abit rough at idle, strangely this seems to have got slightly worse (or certainly not improved) since cleaning TB.

it doesn't stall but every few seconds seems to slightly splutter/misfire.

also at low revs (800-1200rpm) in 5th it seems to judder a bit.

i think these are probably related.

what's the most likely cause do you think?

TB is clean
i think relays are ok
plugs + air filter not too old

[shepgti]

my car suffers from the same splutter at idle, no idea what it is though

[robz]

mine too!!
was wondering if it was to do with this vac pipe/cranksensor.etc... prob

[shepgti]

could well be vac pipe as mines split

[robz]

is yours lackiing power aswell with it??
ive ruled vaxc pipes out on mine so next it tb butterfly...

[thai-wronghorse]

is yours lackiing power aswell with it??
ive ruled vaxc pipes out on mine so next it tb butterfly...

unfortunately that's how the 8valvers were made. 

[robz]

no, not the usual lack of balls, sometimes ya put your foot down and it starts back firing and tries to stop until ya lift off, lol
then ya have to tease the throttle till it clears itself!!

love it...

[whit]

what hoses need checking?

[Mikester]

Why are you driving at 1200rpm anyways? Surely all cars would. I dont drive bellow 2000rpm.

I change down at that point.

In all honesty a gti should be driven at 4k plus. lol. But thats just my opinion.

The idle speed is 900rpm, and that doesnt have enough power to move the car, hence it stalls at that speed when u lift the clutch up. So what do you expect at 1200rpm in !!!5th!!! gear!

Change down to 3rd, maybe 2nd, and put ur right foot onto the carpet. lol

[VW Mel]

Change Down? lol