cold start problem any ideas?

[NGOLF.U]

what happens is when i start it cold. the car will start.
in the first few secconds after the car has been started as the revs are dropping to idle, they will drop to low and most times the car will just turn off. then when i re start it it starts fine.

there is no loss of power, no abnormal reving when the car is stationary.

im thinking its a vacuum leak or bad fuel.
this started the 1st cold start after i filled with bp ultimate.

[spa]

what happens is when i start it cold. the car will start.
in the first few secconds after the car has been started as the revs are dropping to idle, they will drop to low and most times the car will just turn off. then when i re start it it starts fine.

there is no loss of power, no abnormal reving when the car is stationary.

im thinking its a vacuum leak or bad fuel.
this started the 1st cold start after i filled with bp ultimate.

strange problem, the same thing happen to me when i got REVO'd. car would turn off after switching it on the same as you describe, this happened several times on the first day, but has never happened since, but yeah, sorry have no idea

[NGOLF.U]

yehh its been revo'd for a while now no probs till now.

[SoVeReIgN]

Mine was doing this when the MAF was dead/dying.

[Guy_H]

move to sunny QLD - problem solved

[gtimk5]

Temp sensor problem?? Very common to have problems with them on the Mk4s and create differing probs when they play up.
I would suggest retrieving the fault codes. Anyone with Vagcom or whatever near you??
Andrew

[NGOLF.U]

yehhh going to see my mechanic tomorrow morning.

[NGOLF.U]

guys just an update... it was a vacuum leak!

[mikk@]

out of quriosity, where was the leak? got the same prob..

[NGOLF.U]

it was on the boost hose that links to the n75 valve.