FF26F5 and EC26EF?

CleanKM · 06-17-2020, 12:23 AM

Hey guys,

Using Bimmerlink, i got this in my permanent errors section:

Code:

Digital Diesel Electronics
2 errors
FF26F5: Unknown error
EC26EF: Unknown error

ISTA doesn't seem to indicate anything and i just got my car from the dealer after having the two NOx sensors replaced and they didnt say anything about it either. The codes were there before i took it to the dealer and after. ISTA picked up everything about the NOx sensors, but i can't find anything about these two. Anyone have an idea? Is it a fluke on Bimmerlink's side?

GXRunner · 12-18-2021, 08:06 PM

Old thread, but did you ever find out anything on these codes? I had the FF25F5 code today using BimmerLink. My check engine light turned on and this was the only code that came up in BimmerLink.

Enabled · 12-19-2021, 10:16 AM

Bimmerlink has a bug, those are not the actual codes. The FF and EC is not part of the error code but rather the telegram from the ecu.

Your actual code is 25F5xx

Enabled · 12-19-2021, 10:21 AM

This was easy because there weren't multiples:

0x25F500 Intake air temperature sensor, signal: interruption or short circuit to plus

0x26F500 DeNOx system, efficiency: efficiency too low in range 1

0x26EF00 NOx sensor after DeNOx-Cat, plausibility NOx: NOx-Signal Offset too high on acceleration

06-17-2020, 12:23 AM	#1
CleanKM SQUEAKY 104 Rep 322 Posts Drives: 2014 328d Join Date: Jun 2010 Location: Washington, DC Metro Area iTrader: (0)	FF26F5 and EC26EF? Hey guys, Using Bimmerlink, i got this in my permanent errors section: Code: Digital Diesel Electronics 2 errors FF26F5: Unknown error EC26EF: Unknown error ISTA doesn't seem to indicate anything and i just got my car from the dealer after having the two NOx sensors replaced and they didnt say anything about it either. The codes were there before i took it to the dealer and after. ISTA picked up everything about the NOx sensors, but i can't find anything about these two. Anyone have an idea? Is it a fluke on Bimmerlink's side?
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12-18-2021, 08:06 PM	#2
GXRunner Registered 0 Rep 2 Posts Drives: BMW 328d Wagon, Lexus GX470 Join Date: Apr 2021 Location: Utah iTrader: (0)	Old thread, but did you ever find out anything on these codes? I had the FF25F5 code today using BimmerLink. My check engine light turned on and this was the only code that came up in BimmerLink.
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12-19-2021, 10:16 AM	#3
Enabled Lieutenant Colonel 1407 Rep 1,800 Posts Drives: 328xd Wagon, M2 Competition Join Date: Jun 2018 Location: Houston iTrader: (0)	Bimmerlink has a bug, those are not the actual codes. The FF and EC is not part of the error code but rather the telegram from the ecu. Your actual code is 25F5xx Last edited by Enabled; 12-19-2021 at 10:23 AM..
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12-19-2021, 10:21 AM	#4
Enabled Lieutenant Colonel 1407 Rep 1,800 Posts Drives: 328xd Wagon, M2 Competition Join Date: Jun 2018 Location: Houston iTrader: (0)	This was easy because there weren't multiples: 0x25F500 Intake air temperature sensor, signal: interruption or short circuit to plus 0x26F500 DeNOx system, efficiency: efficiency too low in range 1 0x26EF00 NOx sensor after DeNOx-Cat, plausibility NOx: NOx-Signal Offset too high on acceleration __________________ -2014 328d Wagon, 8HP. Self-tuned, 270hp/430ft-lbs. -2019 M2 Competition MT, Alpine White. Self-tuned 560hp -2016 Mini Cooper S, MT. Many plans. Others: -E36 328is. 2000 Z3 Roady. 2003 VW Jetta TDI Manual. Estoril Z3M Coupe. Last edited by Enabled; 12-19-2021 at 10:29 AM..
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