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I don't have Protool but I do have BimmerLink, not sure if I would be able to use that for programming the EKP.

First off I want to say thank you for all you suggestions, I really appreciate it! I have done a smoke leak test but not sure if the smoke was able to get into the intake manifold as most of the smoke was leaving through the air filter. I want to give this another go but not need to figure out a...

When I logged them last they were in the -20’s for LTFT and range from -5 to +20 for STFT.

That makes sense but my issue is typically noticeable at idle and returning to idle. When cruising it sounds and drives pretty normal. I have only driven it very lightly since this issue has occurred to do tests so I haven't gone WOT.

Ok, I'll check those out. Thanks! The thing that is strange but maybe I just don't understand is my fuel trims are very rich so that would indicate, in my opinion that the LPFP isn't having a hard time keeping up. Or am I wrong on that as well?

Ahh yeah I was mixing those up, but is it incorrect to assume that if my HPFP is in normal ranges that my LPFP is feeding it correctly? I can certainly check the LPFP psi as well.

Is 5000 psi when cruising too high?

I haven't done a compression check but plan on doing that this weekend. I haven’t logged my LPFP pressure but I watched it today and it ranged from 1800 or so at idle to 5000 when driving. My port injection was turned off in a tube revision and still had the same issues so I’m fairly confident...

I saw this video from Kern and decided to see if my fuel pressure dropped or climbed after a heat cycle and it rose which indicates I don't have a bad fuel injector. I also got fresh gas today just to make sure it wasn't that and it wasn't. This issue has been perplexing and I'm really starting...

I just did a smoke leak test over the weekend and didn't find any leaks. Everything seems to point to a fuel injector. The fact that it is dumping fuel, it's not a boost leak, not an O2 sensor, MAF sensor nor does it seem to be plugs/coil packs. The only thing I haven't done is replace the gas...

Oh ok, we seemed to have some differences because my fuel trims were very rich.

Interesting, what were your codes? What did your fuel trims look like?

I've scoped cylinder 1 & 2 and couldn't see much but it didn't look the best in regards to carbon build up. My newish spark plugs are already dark. I've swapped MAF and O2 sensors which didn't help. I've tried a new tune that disabled port injection that didn't help. I'm thinking of trying a...

when I re-gapped my plugs I shined my light and didn't see anything. I will definitely be scoping them and see what I can find.

I will definitely check on that. One thing to note is that this happened all at once. I did a pull and it cut power, then couldn't idle without sounding like a Subaru ever since. That immediately had me checking for a coupler or hole in my charge pipe or intake piping. I've gone through all of...

I haven’t thought about it like that but have definitely been wondering what sensor it could be. I just scanned it with BimmerLink and didn’t get anything that I didn’t already know. I did see that cylinder 1 is still misfiring more than the rest even after moving that spark plug and coil to...

They were in the logs to @Twisted Tuning and I assumed they were good or they’ve changed. I’m not sure. I have not scanned with BimmerLink but definitely can. I’ll report back.

Thank you for the info! Any suggestions on things to look at? If something is dumping fuel, does that indicate an injector issue or a faulty sensor telling it to dump fuel?

I tried to upload logs but .csv’s aren’t allowed. One thing that’s jumping out to me is my AFR goes sky high, as in the 100’s when I let off the throttle. I’m not sure what STFT and LTFT are supposed to be but mine sit in the -20’s for LTFT and range from -5 to +20 for STFT. Also, I swapped the...

Have you looked at your O2 sensors?