Audi s3 2016 misfire issue

Neddies

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Hi fellas, hoping someone can throw me in the right direction, recently had a misfiring issue on my Audi s3 2016 (8v) car drives fine but once you put your foot down it sends the EPC light with a flashing engine management light then the car runs like a bag of **** turn engine off and restart as nothings happened but once you put your foot down back to square one, I’ve replaced all 4 spark plugs, I’ve read the code and it’s a misfire on cylinder 3 I’ve moved the coil packs around and it’s still saying cylinder 3 I’m at a lost cause any help would be highly appreciated.
 
Most likely the injector is at fault. if it doesn't supply enough fuel it will cause pre-ignition (detonation) which will be detected as a misfire. That might explain why its fine for normal driving but as soon as it comes on boost and fuel demand goes right up it misfires.
 

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