Misfires Stage 1 APR 2.0T CAED

[Nick4929]

I am currently experiencing misfires on all cylinders (mainly in 3 and 4) on my A4 after stage 1 tune. Runs fine under light throttle but misfires under medium to full. I have APR coil packs and have tried different plugs gapped to .028 but the problem still persists, any info or ideas are appreciated. Fuel trim and mass air flow seem to be normal with live data. I took pictures of live data for misfire counts on a 20 minute drive but not sure how to post them here. Started with 1- 622 2-283 3-1042 4-367
After 20 minute spirited drive the numbers show 1-622 2-286 3-1053 4-368

[Nick4929]

I’ve had the tune for about 3k miles and got new APR coils right before the tune.

[Nick4929]

Piston rings ended up being fried, time to figure out the next step

[Blackdoutb7]

I am currently experiencing misfires on all cylinders (mainly in 3 and 4) on my A4 after stage 1 tune. Runs fine under light throttle but misfires under medium to full. I have APR coil packs and have tried different plugs gapped to .028 but the problem still persists, any info or ideas are appreciated. Fuel trim and mass air flow seem to be normal with live data. I took pictures of live data for misfire counts on a 20 minute drive but not sure how to post them here. Started with 1- 622 2-283 3-1042 4-367
After 20 minute spirited drive the numbers show 1-622 2-286 3-1053 4-368

So I had the APR coil packs and they got all burned out because those packs are trash. Switch them out for OEM RS ones and that should help


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[LovittB7]

I had the apr coil packs too and they were trash I switch to the ECS ones and have had no problems since. (I have a stage 2 jhm tune on my a4)


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