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      07-15-2020, 08:27 AM   #1111
Alex@Alpine
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Drives: E90 M3
Join Date: Feb 2010
Location: United States

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Quote:
Originally Posted by bennylagoon View Post
Quote:
Originally Posted by tdott View Post
I have an issue with both 93 and e85 files. It does not accelerate smoothly from low rpm. My car has headers and catless xpipe.

So I did some logging with BMW logger and this is what I got, it looks like it actually starts at 2k rpm for me. You can see the first arrow pointing to the rpm value, it doesn't increase smoothly, at 2k rpm it flattens for a split second then increases evenly after this, while throttle is 100% the whole time and DSC is off.

The second arrow shows a dip in AFR ratio at this point. It dips to 0.84 then goes to 1, then works its way down a bit.

Not really sure what this means or what it points to:
Same problem for me and same log.

Have you found the problem ?
His problem is most likely isolated to burbles and quickly returning from burbling to driving. What is your problem?
Appreciate 0