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      04-12-2022, 02:05 PM   #29
Ajowhan
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Drives: m240i 'vert
Join Date: Feb 2021
Location: CA

iTrader: (1)

Quote:
Originally Posted by ZHP to B58 View Post
I sent in some logs to MHD. Their emailed response was basic; said my fuel pressure drops (obviously), but that the injectors can handle way more than just 91 octane pump gas. Suggested that I may have a weak pump.

I still haven't put in the brand new gen 2 B58TU HPFP - waiting on the harness extension. Will aim to put it in next weekend and see if that fixes the issue.

The one thing I've noticed though is that when I have burbles set to "hard" (duration is only 0.8 to 1.2 sec), it seems to misfire a lot more under load. With burbles completely off, it misfires less, if at all. As usual, no codes.
Do your misfire happen mostly under WOT uphill?
Appreciate 0