Im at wits end here. I have a 2001 vw gti vr6, my car started misfiring 2 weeks ago, so i changed all plugs and wires, tested coilpack which was good, perfect compression only 56,000 miles. finally found the problem with cylinder 2 injector replaced it and ran great. 4 days later it began to start starting hard when cold and evens ometimes when warm. and check engine light comes on until the car gets up to temp then it shuts off. please help it is driving me crazy.

 

Welcome to the forum.

You really need to find someone with VAG-COM\VCDS to scan it for error codes them post them.

Please tell us your car spec in your signature