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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 05-06-2020, 06:35 PM

Quote:
Originally Posted by Terix
So do you think I should still look at replacing the O2 sensor since the trims are high? Something seems off still. I have gotten a code a couple times over the past few weeks that puts the engine into limp mode.

2906 - Intake air system: Suspicion of leaks between turbocharger and intake valves.

The weird thing with the code is that each time it occurred was while getting onto the interstate with light acceleration while in 5th or 6th gear. Yesterday I also had one rough start (engine was relatively warm still) where the car almost stalled. These issues seem to occur randomly though which is really throwing me off.
Id monitor o2/AFR day to day- see how they look.

Some have issues with light throttle, occasionally- what are your 10-12 menu set too?


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Choyo_n55 Choyo_n55 is offline
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Default 05-07-2020, 03:54 AM

Quote:
Originally Posted by Terix
So do you think I should still look at replacing the O2 sensor since the trims are high? Something seems off still. I have gotten a code a couple times over the past few weeks that puts the engine into limp mode.

2906 - Intake air system: Suspicion of leaks between turbocharger and intake valves.

The weird thing with the code is that each time it occurred was while getting onto the interstate with light acceleration while in 5th or 6th gear. Yesterday I also had one rough start (engine was relatively warm still) where the car almost stalled. These issues seem to occur randomly though which is really throwing me off.
i have the same problem with the 2906 error it appears when i am on the highway and i drive at 5-6 geat with 1500-1800 rpm, the car enters limp mode, but in fact everything works ok and the car goes fine, i will follow with interest


2011 e90 n55, vrsf down pipe,cp,fmic jb4,AT xhp stage3
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Terix Terix is offline
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Default 05-08-2020, 02:29 PM

Quote:
Originally Posted by Choyo_n55
i have the same problem with the 2906 error it appears when i am on the highway and i drive at 5-6 geat with 1500-1800 rpm, the car enters limp mode, but in fact everything works ok and the car goes fine, i will follow with interest
Sounds like it may be no big deal. It doesn't come on often enough for me to get irritated and I can just clear it and keep driving. I don't even have to restart the car when clearing it unlike some other limp mode codes.


2013 E93 N55 335i | AT (xHP Stage 3)
Pure Stage 2 | DV+ | Pure Inlet | JB4/MHD BEF
Phoenix Racing PI Intake Manifold w/ 750cc injectors | Fuel-It Stage 2 LPFP
BMS 7.5" FMIC + 3" J Pipe | BMS Intake
VRSF DP and CP | N20 TMAP Sensor
BMS WMI Kit
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Terix Terix is offline
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Default 05-08-2020, 02:30 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Id monitor o2/AFR day to day- see how they look.

Some have issues with light throttle, occasionally- what are your 10-12 menu set too?
10: 3
11: 1
12: 2400 RPM (so I guess 2.4)


2013 E93 N55 335i | AT (xHP Stage 3)
Pure Stage 2 | DV+ | Pure Inlet | JB4/MHD BEF
Phoenix Racing PI Intake Manifold w/ 750cc injectors | Fuel-It Stage 2 LPFP
BMS 7.5" FMIC + 3" J Pipe | BMS Intake
VRSF DP and CP | N20 TMAP Sensor
BMS WMI Kit
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Choyo_n55 Choyo_n55 is offline
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Default 05-10-2020, 12:30 AM

Quote:
Originally Posted by Terix
Sounds like it may be no big deal. It doesn't come on often enough for me to get irritated and I can just clear it and keep driving. I don't even have to restart the car when clearing it unlike some other limp mode codes.
it's stressful when the dashboard lights up, let's see what the BMS guys will say about menu settings 10 and 12, mine are like yours 10-3000; 12-2400


2011 e90 n55, vrsf down pipe,cp,fmic jb4,AT xhp stage3
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