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BMW 3-Series (E90 E92) Forum
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N52 3 Stage Manifold, Tuned now getting 2FA4 Because of wrong powerclass
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12-17-2023, 02:16 PM | #1 |
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N52 3 Stage Manifold, Tuned now getting 2FA4 Because of wrong powerclass
Hello, I recently tuned my 2008 328i MSV80 with a the 328 to 330 tune from BL. After the tune I get the 2FA4 error code, my CAS shows klasse_1 and my 6BMOT shows wert_00. I tried several guides that say you can edit those value but they all failed. My research got my to this forum to a post were cheerio was able to modify the powerclass byte but I havent managed to figure out how to modify these on my tune file that i got from BL. it said to modify 0X26BA on HW#861300 and 0x2191 on HW#7602220.
Can someone please help shed some light on how to do this? |
12-21-2023, 01:13 PM | #2 |
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Drives: 2007 BMW 328xi 6MT
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Location: Edmonton, Alberta
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this is what I followed on my MSV80 when I encountered wrong powerclass, I was able to get it fixed within 10 ish minutes.
https://www.e90post.com/forums/showthread.php?t=1664944
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E90 328xi 6MT | Intake Scoops | K&N + Charcoal Filter Delete | DIY Dinan 3in | 3.25in + 3.5in piping | N54 Manifold | Ceramic Coated Headers | Secondary Cat Delete | Xdelete | 3.91 Diffs | 22RPD Tune
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12-21-2023, 03:28 PM | #3 |
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Ive tried it several times. When I try to change the cas it gives an error. It doesn't seem to like being set to a 0 because if a do a bank man update it seems to respond normally. If a try the 6bmot it behaves like it does it, even the cars dash lights react but when I check, the change wasnt done its still a 0
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12-29-2023, 02:24 AM | #4 |
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Drives: E92 328i 6MT
Join Date: May 2020
Location: Bay Area
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I had this issue before and couldn’t change the power class. What I did was reset the ecu using one of the options on ncs and reflash everything. That seemed to do the trick
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Tags |
2fa4, manifold, powerclass, tune |
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