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Car: 2011 BMW 750i M package
Default 11-09-2021, 04:28 PM

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Originally Posted by EFoss28
Any help would be appreciated. I have a 2011 550i 6spd manual.

BMW reman engine with 9k miles.

New in last 1500 miles OE NGK plugs, Bosch coils, air filters.

Only mods to the car are Meisterschaft exhaust with x Pipe and BMS throttle tuner.

The car had a drivetrain malfunction at the end of this log (5th gear).

I did have a code 102302 MAF air mass too high

I do have 2 step colder plugs, but haven't installed yet.

Thanks!

it looks like you boosted the highest when the error happened so this is just a guess but are you running the stock map sensors or the 3.5 ? If you're still on stocks then you may wanna look into upgrading them to 3.5 but you will also need to buy the adapter cables also to go with the 3.5 map sensors... like these --->>> https://www.google.com/amp/s/n63inta...r-pnp-adapters
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EFoss28 EFoss28 is offline
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Default 11-09-2021, 06:53 PM

Thanks for the response. I did order new MAF sensors. If that doesn't fix the issue I'll order the 3.5 bar MAP sensors. Thanks!
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Default 11-10-2021, 09:05 PM

Quote:
Originally Posted by EFoss28
Thanks for the response. I did order new MAF sensors. If that doesn't fix the issue I'll order the 3.5 bar MAP sensors. Thanks!
You're welcome... good luck ! I have had that warning many times myself ( usually happens when i set my jb4 to too much boost ) so I know how much it sucks...i recommend that the place you got the MAF sensors have a good return policy because the OEM ones are pretty pricey and more often then not are not the issue and speaking of sensors when it comes to BMW make sure you always buy oem sensors NOT the cheap chinese replicas , I learned that the hard way also ...
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EFoss28 EFoss28 is offline
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Default 11-16-2021, 09:58 PM

Just to follow up, the new MAF sensors allow me to now run on Map 1 and Map 2 without any drivetrain malfunctions. Need to do a few logs in 4th and post. Thanks again for the help.
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EFoss28 EFoss28 is offline
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Default 11-19-2021, 12:50 PM

Here is my datalog in 4th from the other day. It looks really lean around 3600.

Should probably do one in Map0 and Map1 too.

Any advice is greatly appreciated!
Attached Files
File Type: csv P63_M2_R2_211117_1047.csv (10.4 KB, 8 views)
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