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E60 M5 (2006 - 2010)

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Old 05-25-2013, 08:40 AM
Ninetyschilling Ninetyschilling is offline
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Location: Colorado
Join Date: Aug 2007
Posts: 1
Mein Auto: M3
Increased Emission Light with No Emission Code???

Hey all I have a one that is throwing me for a loop. I have an 08 M5 that I keep getting an increased emission warning, however when I pull the codes there are no engine or emission faults to be found?? The only hard faults are a SMG 4F40 lower hydraulic pressure fault and a faulty steering angle sensor code, no problems shifting and no DCS ABS warnings because of the steering sensor, WTF??? The big kicker is the warning typically comes on when I put the car in reverse, why an emission warning for that I have NO CLUE? I'm thinking maybe I have a dirty MAF sensor, because I know that if one of those goes it will effect the signals to the tranny computer, but I'm at a loss. Anyone out there have any ideas, any help would be great.

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Old 07-01-2013, 06:41 PM
Dalebaby Dalebaby is offline
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Location: Cincy
Join Date: Jul 2013
Posts: 3
Mein Auto: 2006 M5
Increased Emission Light with No Emission Code???

I've got an 06, and it turned out to be my gas cap...for some reason it clicked right, and then didn't lock/click back...I fiddled with it, and after new gas and a day it went away...could have been gas, but I'm guessing it was the cap...

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