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      04-12-2024, 12:26 AM   #9
AlpineF82brrr
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Drives: 2015 BMW M4
Join Date: Mar 2024
Location: CALIFORNIA

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Bumping this post because I have an update

I haven’t checked the PCV as the above comment says yet

But
I had brand new injectors put in
Brand new coil packs
Brand new sparks again
Brand new MAF sensors

The issue gets a little better on startup after cleaning the MAF sensors then it deteriorates progressively and starts revving itself randomly and chopping a little bit.

After it started getting worse again(it had been good on startup suuper smooth the RPMS didn’t bump up and down at all then it got worse again after about 20 days)

I replaced the MAF sensors this time which made it better again just not totally smooth like last time. I wonder what could be causing this issue?

Shops aren’t sure either but has anyone ran into this issue before?
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