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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > MHD inactive code help



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      03-13-2021, 10:46 AM   #1
C.335xi11
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MHD inactive code help

I have a 2011 bmw 335xi w only an upgraded charge pipe and stage 1 mhd tune, mhd gives me a code “fuel high pressure during fuel injection release: pressure too low” while I’ve read forums that have had the same problem but mines a little different. I could be just overthinking it but the car doesn’t idle rough, starts right up when I go to start it unless I’ve been driving and it’s warmed up then it’ll take a second or 2, 3 seconds is the most it took and that was before the code, I don’t experience any problems when flooring it feels fine like when I got it, only time it bogs down is it I’m around 5 mph w/out touching the gas it will jump like it has some huge cam. Rail pressure stays around 700-770 idle and stays above 2k when floored. I don’t have any other codes just that one. I don’t have a way to monitor hpfp or lpfp. Is this code just actually inactive and popping up due to the tune or maybe something I’m not catching or understanding in the other forums?
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      03-28-2021, 06:09 AM   #2
Saif2018
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Quote:
Originally Posted by C.335xi11 View Post
I have a 2011 bmw 335xi w only an upgraded charge pipe and stage 1 mhd tune, mhd gives me a code “fuel high pressure during fuel injection release: pressure too low” while I’ve read forums that have had the same problem but mines a little different. I could be just overthinking it but the car doesn’t idle rough, starts right up when I go to start it unless I’ve been driving and it’s warmed up then it’ll take a second or 2, 3 seconds is the most it took and that was before the code, I don’t experience any problems when flooring it feels fine like when I got it, only time it bogs down is it I’m around 5 mph w/out touching the gas it will jump like it has some huge cam. Rail pressure stays around 700-770 idle and stays above 2k when floored. I don’t have any other codes just that one. I don’t have a way to monitor hpfp or lpfp. Is this code just actually inactive and popping up due to the tune or maybe something I’m not catching or understanding in the other forums?
This is the Coding section,

You need to ask here...

https://www.e90post.com/forums/forumdisplay.php?f=58
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