I have a 2006 Golf GTi. It has developed a slight misfire. Only happens at low revs. If you drive normally you can feel the misfire, once you put your foot down it disappears.
I have run a diagnostic and it says misfire No2.
I swapped plug and coil pack for No4 but No2 still misfires.
I then removed the intake manifold, disconnecting the fuel pump, 2 x fuel lines and all the bolts.
Then replaced the injector on No2.
I now have a misfire on all 4 cylinders, but the car runs exactly how it did before.
I then did a pressure test on all cylinders, all of them were 175psi give or take 5%.
My last test was a smoke test, all was well but i was getting smoke coming through rocker cover breather.
I am now a bit stuck as where to go from here.
