Audi S4 B8 “backfiring” and occasional misfire under hard acceleration

[BlakeBro]

The title pretty much sums it up, car is at 162k miles and fluids changed earlier than recommended, the issue im having is when I accelerate pretty hard it feels like the car is backfiring and if its hard enough it would misfire, driving normally it feels great.

the CEL scanned through Obdeleven tell me “MAF/Map throttle position” code: P006800

“Intake air system leak” code: P227900

I changed the throttle body(had it adapted to the car) , all three of the MAP sensors.

So im lost, any answer or thought is appreciated

[RoofRails]

The title pretty much sums it up, car is at 162k miles and fluids changed earlier than recommended, the issue im having is when I accelerate pretty hard it feels like the car is backfiring and if its hard enough it would misfire, driving normally it feels great.

the CEL scanned through Obdeleven tell me “MAF/Map throttle position” code: P006800

“Intake air system leak” code: P227900

I changed the throttle body(had it adapted to the car) , all three of the MAP sensors.

So im lost, any answer or thought is appreciated

Check all of your vacuum lines. There may be a vacuum leak.

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