Recent Posts91
Mk5 General Area / Help with misfire!
« Last post by Mod29 on October 29, 2025, 08:37:10 am »Hello all, 08 BWA engine developed a misfire BUT only at low rpms under WOT. Does it alot more when the engines cold, for example if im in say 4th at 1500 rpm i’ll get multiple misfires wot until around 3.5k then it’ll stop completely and pull happily to redline. Does not do it from a standstill foot to the floor 1st through all the gears. Literally only at very low rpm in a high gear full throttle.
No codes, or eml whatsoever.
I have vcds, detected 1 or 2 misfires in cylinder 1 and loads in cylinder 3, did the usual swap coils (still the original coils bare in mind) no change.
Injectors where swapped last year for recons (genuine) symptoms for that was basically engine wouldn’t rev or make any boost, totally different from what I’m experiencing now.
Vacuum seems to be good, pcv’s working. What else can i look at? Carbon build up seems to be mentioned alot. However when i did the injectors the build up didn’t seem to be that bad.
Any help to what direction to go is appreciated!
No codes, or eml whatsoever.
I have vcds, detected 1 or 2 misfires in cylinder 1 and loads in cylinder 3, did the usual swap coils (still the original coils bare in mind) no change.
Injectors where swapped last year for recons (genuine) symptoms for that was basically engine wouldn’t rev or make any boost, totally different from what I’m experiencing now.
Vacuum seems to be good, pcv’s working. What else can i look at? Carbon build up seems to be mentioned alot. However when i did the injectors the build up didn’t seem to be that bad.
Any help to what direction to go is appreciated!
Bought a 2018 MK7.5 GTI Performance. Loving the comfort. 
