All Things Mk5 > How to Guides / Troubleshooting

Judder plus engine light (changed coil packs)

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shoaybmakda:
Hi all

Been suffering from some judder plus engine light flashing when putting my foot down. Fault was cylinder 2 misfire.

Changed all 4 coil packs for brand new ones and thought the fault went but it happened again today  :fighting:

Any ideas? Could it be injectors?

hlcst:
I had a very similar experience mate, I installed new coil packs and had to renew the plugs the day after

pudding:
Injectors normally only misfire at idle speeds when the rail pressure is at it's lowest.  A lack of spark shows up as a miss under heavy load, usually in the midrange.  So sounds spark related from your description.  Plugs next as /\ said.

If you still get a misfire, monitor which cyl with VCDS, then replace that injector.  Well, may as well do all 4 whilst you're there as it's a faff of a job.

shoaybmakda:
Thanks both for the input - plugs were changed in Feb at VW service. Could they need changing already?

pudding:
No way, they last for ages.  Might be worth checking them for oil fouling though, just in case. 

Any other fault codes come up on the scan?

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