08 standard GTI
VCDS states I have a various misfires but repeating on cylinder 3 so I decided to investigate the cause before I start to strip the engine to do the cam chain.
I swapped coil pack 3 to 4, issue remained on cylinder 3
I swapped the plug 3 to 4, issue remained on cylinder 3
Next step was to do the compression test. I borrowed the tested from a friend and screwed into cylinder 1 (M14 thread adaptor), removed 15A fuse F27 from passenger side box which I believe to be the fuel pump? I cranked it 5 times and each time it made an awful squeak/screach like the air was escaping out and read 0bar. Wasn't sure what was going on so moved onto the rest of the cylinders and they all did the same sound and all ready very poorly. I am unsure if its a dodgy tester, user error or if the engine is truly goosed.
Cylinder 1 - 0 bar
Cylinder 2 - 2 bar
Cylinder 3 - 4 bar
Cylinder 4 - 4 bar
Each time I cranked the tested would pulse up but would immediately loose all the pressure but I cannot say how much as it was quite dark and visibility of the gauge wasn't the best, anyway any help or tips would be most welcome?
