All Things Mk5 > How to Guides / Troubleshooting

Mk5 GTI rough idle and misfire

(1/2) > >>

Vag-mk5:
Hello everyone, I have a problem with my gti

If the car stands still for a day and I start it, it has over 30 misfires on cylinder 4 read with VCDS

but only the first 20sec after that nothing more and it runs quietly

and as soon as the engine has reached operating temperature and i brake at traffic lights, cylinder 1 occasionally misfires when idling

so far i have changed the parts and it was still the same error

spark plugs
Ignition coils
Injectors
Compression measurement(good)
Mass airflow meter
PCV
lambda sensors

I really don't know what else to do, please help, thanks :jumping:

mjmallia:
The small cam chain and its tensioner.....also the three plastic rings in for the oil pressure to the actuator can all create misfires and rattles.

Vag-mk5:
Yes, the chain and tensioner were also changed 2 weeks ago

And the 3 rings from the housing also changed

GVK:
Any coolant loss/signs of coolant on spark plugs?

Vag-mk5:

--- Quote from: GVK on March 13, 2023, 09:21:32 pm ---Any coolant loss/signs of coolant on spark plugs?

--- End quote ---

no, there is no loss of coolant or it is not noticeable, I changed it completely a year ago and the level is still between min and max

Navigation

[0] Message Index

[#] Next page