2008 Mini Cooper s

Joe Diagnostician Midland, Texas Posted   Latest   Edited  
Question
Driveability
2008 Mini Cooper S 1.6L (N14B16A) 6-spd (GA6F21WA)
2885 Boost Pressure Control Deviation

I have a 2008 Mini Cooper S (R56)

L4-1.6L Turbo (N14) customer complaint is mil illuminated stored DTC’s 

2885 boost pressure control deviation, plausibility cannot find Any information on code need help thank you 

sorry for the limited info checked Inwc on crankcase around 16.5 in wc converts to 41 millibar smoked engine no leaks found vehicle acts like it stumbles at times feels like a misfire 

-1
Jose Technician
Woodland, California
Jose Default
 

2885 is the Hex code which translates to SAE code P1297 essentially a boost pressure too low code. Can you drive the car and graph boost pressure values?

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Luis Technician
Lake Forest, California
Luis Default
 

What have you done?, we need more info, a quick google search has tons of info on that code, did you performed health scan, have you test drive the vehicle, any driveability issues present, a quick visual inspection of vacuum hoses oil soaked, leaking? have you smoke the intake? what service information is your shop providing you, I can't help you if you post has lack of info

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Joe Diagnostician
Midland, Texas
Joe Default
 

Thank you for the help I’m sorry for the vague description vehicle showing misfires on every cylinder while in park at idle smoke tested for leaks found none checked crankcase 41 mbar at idle .

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Bill Owner/Technician
Jackson, Michigan
Bill Default
 

can you please provide the fuel trim and fuel pressure data? It is tough to help with such limited info provided.

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Randy Diagnostician
Glendora, California
Randy Default
 

Check valve cover for internal leak .

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Joe Diagnostician
Midland, Texas
Joe Default
 

Checked with Dwyer 425 digital nanomete 16.5 inwc at idle converts to 41 mbar

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Randy Diagnostician
Glendora, California
Randy Default
 

Then check blow off valve it ruptures

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Jess Diagnostician
Windsor, Wisconsin
Jess Default
 

This may help as is common with modified Minis. jmtcperformance​.​com/publications/m…

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Victor Owner/Technician
Doral, Florida
Victor Default
 

Check for collapsed or faulty hoses to vacuum pump.

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Joe Diagnostician
Midland, Texas
Joe Resolution
 

I want to genuinely thank everyone for there time and expertise sorry if I know I did not provide enough information for further diagnosis on this vehicle i found a ruptured diaphragm on the diverter valve (bypass) at the Turbo causing a 2885 boost pressure control deviation, plausibility which is one of many components that can set this code thank you all

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