u/WerewolfDesigner

I have a 2016 BMW M235xi (Auto) that I haven’t been able to drive since July 4th (mostly waiting on things to ship, see if it works, it doesn’t, then waiting on more shipping). The issue started right at the beginning of a hard pull, fell completely flat when it finally shifted to second and just bogs with any throttle, and at some point just completely stalled and shuts the engine off, barely made it home bc it was up a hill and stalled 2 times, plus a steep subdivision too.
Car seems to idle just fine but bogs under any throttle and can’t really go past 2K rpm.

Car has a Stage 2 xHP transmission tune and that’s it, no engine tune.

I have no CEL light, I used BimmerLink/BimmerCode and saw a soft code “Air mass, plausibility: air mass too low” in the beginning (I have cleared it since and it hasn’t returned though I have only started the car for a max of 7mins since then) and replaced the air filter, which I unfortunately completely forgot about this simple maintenance and that air filter hasn’t been changed for about 2 years. I replaced the air filter, issue persisted. I cleaned my MAF sensor, didn’t work, so I bought a brand new one and the issue still persisted. Where I’m currently at is I purchased a VRSF Charge pipe kit to replace the piping in case that’s the issue but wondering if that could even be related, at a complete loss if it’s not.

I have a 2016 BMW M235xi (Auto) that I haven’t been able to drive since July 4th (mostly waiting on things to ship, see if it works, it doesn’t, then waiting on more shipping). The issue started right at the beginning of a hard pull, fell completely flat when it finally shifted to second and just bogs with any throttle, and at some point just completely stalled and shuts the engine off, barely made it home bc it was up a hill and stalled 2 times, plus a steep subdivision too.
Car seems to idle just fine but bogs under any throttle and can’t really go past 2K rpm.

Car has a Stage 2 xHP transmission tune and that’s it, no engine tune.

I have no CEL light, I used BimmerLink/BimmerCode and saw a soft code “Air mass, plausibility: air mass too low” in the beginning (I have cleared it since and it hasn’t returned though I have only started the car for a max of 7mins since then) and replaced the air filter, which I unfortunately completely forgot about this simple maintenance and that air filter hasn’t been changed for about 2 years. I replaced the air filter, issue persisted. I cleaned my MAF sensor, didn’t work, so I bought a brand new one and the issue still persisted. Where I’m currently at is I purchased a VRSF Charge pipe kit to replace the piping in case that’s the issue but wondering if that could even be related, at a complete loss if it’s not.