Since running a milltek exhaust on my car i had noticed some popping on idle i thought nothing of it.I had my car on the rollers at midland vw and was told there was a fault code for a miss fire on piston 4 so i did the usual new spark plugs,coil pack, and pcv valve.
This hasn't solved the issue.
Today i have just finished a compression test with the following results
cylinders 1-3 were at the 12 bar mark
cylinder 4 9.8!
i had hoped that this was just going to be a bad injector but these results would prove other wise?
The cars booked in next week to investigate further, i spoke to a master tech at Audi who reckons from what i have said it could be, a valve not fully closing/head gasket/piston ring.
im just wondering if any one on here has any ideas?
just to add this is my third 2.0tfsi engine and the other 2 both needed head gaskets doing.
This car has just hit 53k
This hasn't solved the issue.
Today i have just finished a compression test with the following results
cylinders 1-3 were at the 12 bar mark
cylinder 4 9.8!
i had hoped that this was just going to be a bad injector but these results would prove other wise?
The cars booked in next week to investigate further, i spoke to a master tech at Audi who reckons from what i have said it could be, a valve not fully closing/head gasket/piston ring.
im just wondering if any one on here has any ideas?
just to add this is my third 2.0tfsi engine and the other 2 both needed head gaskets doing.
This car has just hit 53k
