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BMW 3-Series (E90 E92) Forum
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N57 Air mass issue
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07-15-2022, 06:45 AM | #1 |
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N57 Air mass issue
Hi to everyone!
I've got a problem. N57b30 Air mass shows significantly different values from nominal values. 60kgh and 42-44 expected at idle engine speed. EGR valve, maf, map sensors replaced. During the acceleration when EGR is closed then it looks like there is no difference in air mass. For some reason i can't reset erg adaptations. Mean quantity adaptation also not working via Rheinhold. Is there a way how to solve this issue? Or maybe my engine was programmed not to use EGR.(but i see it is working, and test is passed correctly, air mass test also) If my car was badly tuned, then how I can identify this via Ista? How it affects? Poor fuel consumption. I'm now running without maf sensor connected, and I see 10-20% lower consumption. |
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