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cjet68 cjet68 is offline
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Car: 2011 BMW 335i N55 M Sport
Default 2C90, 387F, & 2C57 codes Help needed - 08-21-2018, 05:26 AM

Yesterday afternoon, as I was getting on the highway, light throttle, I got the following codes.
2C90 present
387F not present
2C57 not present

Codes have not appeared again and engine seems as quick as ever.
Was running Map 0.
93 octane
no other mods besides BMW Performance Edition, dealer installed.
Retrieved codes using a Foxwell nt520.
Thanks, Chris
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Dave @ BMS/Fuel-It!'s Avatar
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Car: E92 335XI
Default 08-21-2018, 07:54 AM

Quote:
Originally Posted by cjet68
Yesterday afternoon, as I was getting on the highway, light throttle, I got the following codes.
2C90 present
387F not present
2C57 not present

Codes have not appeared again and engine seems as quick as ever.
Was running Map 0.
93 octane
no other mods besides BMW Performance Edition, dealer installed.
Retrieved codes using a Foxwell nt520.
Thanks, Chris
Can you post descriptions ?



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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cjet68 cjet68 is offline
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Car: 2011 BMW 335i N55 M Sport
Default 08-21-2018, 09:11 AM

Blow off valve jammed closed

Power management standby current violation

Charging pressure control plausibility pressure too low

In order of codes from title.

Thanks
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Dave @ BMS/Fuel-It!'s Avatar
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Default 08-21-2018, 02:01 PM

Quote:
Originally Posted by cjet68
Blow off valve jammed closed

Power management standby current violation

Charging pressure control plausibility pressure too low

In order of codes from title.

Thanks
When you clear, do they return?



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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cjet68 cjet68 is offline
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Car: 2011 BMW 335i N55 M Sport
Default did not clear the codes - 08-21-2018, 07:09 PM

After the codes appeared I parked the car for about 2 hours. When I restarted the car the check engine light was NO longer illuminated and when I went into Check control function it said all OK.
I read the codes later that day and left them in there just incase.
The codes have not reappeared as of tonight and I've driven about 50 miles since then. Car feels good, strong.
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cjet68 cjet68 is offline
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Car: 2011 BMW 335i N55 M Sport
Default Codes Still Present - 08-30-2018, 05:50 AM

I am still getting the 2C90 blow-off valve jammed closed, 387F power management standby current violation, and 2C57 charging pressure control plausibility, pressure too low.

Do you think it might be the Pneumatic Wastegate Control Valve(BMW Pressure Valve 11 74 626 351) ?

Codes have not appeared when running Map1 with JB4.
Codes only appear when running Map0.

Thanks
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Jon @ BMS's Avatar
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Default 08-31-2018, 10:01 AM

What year/model vehicle? Got install photos for us to look over?


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cjet68 cjet68 is offline
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Default 387F, 2C90, 2C57 codes continue - 08-05-2019, 12:33 PM

I get these codes from time to time.
Oddly enough it happens when I am taking a left turn, like getting on the highway/freeway.
Codes go away after shutting the car off for 10 minutes

Ideas appreciated on what to check. Maybe poor voltage connection?
Thanks for ideas or links to help solve!!!

2011 335i N55, JB4, BMS chargepipe. 37K miles
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