N52 3 Stage Manifold, Tuned now getting 2FA4 Because of wrong powerclass

fespinoza831 · 12-17-2023, 02:16 PM

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?

chilledn52 · 12-21-2023, 01:13 PM

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

fespinoza831 · 12-21-2023, 03:28 PM

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

aphael · 12-29-2023, 02:24 AM

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

fespinoza831 · 12-29-2023, 07:33 AM

Do you mean flashing the blank .MAN file? And then reflashing the tune?

12-17-2023, 02:16 PM	#1
fespinoza831 New Member 0 Rep 9 Posts Drives: e90, e46, e66 Join Date: Dec 2023 Location: Yuma AZ iTrader: (0)	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?
	Appreciate 0 Tweet Quote

12-21-2023, 01:13 PM	#2
chilledn52 Parts Pro 65 Rep 134 Posts Drives: 2007 BMW 328xi 6MT Join Date: Sep 2022 Location: Edmonton, Alberta iTrader: (0) Garage List 2007 BMW 328xi [10.00]	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 __________________ 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
	Appreciate 0 Quote

12-21-2023, 03:28 PM	#3
fespinoza831 New Member 0 Rep 9 Posts Drives: e90, e46, e66 Join Date: Dec 2023 Location: Yuma AZ iTrader: (0)	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 Attached Images
	Appreciate 0 Quote

12-29-2023, 02:24 AM	#4
aphael Second Lieutenant 91 Rep 223 Posts Drives: E92 328i 6MT Join Date: May 2020 Location: Bay Area iTrader: (0) Garage List 2007 BMW 328i [0.00]	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
	Appreciate 0 Quote

12-29-2023, 07:33 AM	#5
fespinoza831 New Member 0 Rep 9 Posts Drives: e90, e46, e66 Join Date: Dec 2023 Location: Yuma AZ iTrader: (0)	Do you mean flashing the blank .MAN file? And then reflashing the tune?
	Appreciate 0 Quote