Check engine light

Javaq · 05-21-2023, 12:32 PM

A little while ago Check engine light appeared. I read fault codes with BimmerLink and reason for fault was "Mixture too rich - 118002").

I cleared fault codes and couples of days it was OK but then again, check engine light apperead.

Engine runs well in high speeds - really no issues. Only in slow speeds and idling sometimes the engine runs a little poorly and shakes from time to time.

Has anyone else has this issue and any clues what it could be?

2015 model and about 65k miles.

Orange fever · 05-22-2023, 10:59 PM

Maybe try replace this:
I did and the check engine light bye bye

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Johnny i8 · 05-23-2023, 07:24 PM

2016 48K miles. Similar issue...some low speed engine performance variability and check engine light...turned out to be O2 sensors. BMW dealer checked for leaking fuel injectors but isolated to O2 sensors...they replaced the O2 sensors and runs great now.

MilehighM3 · 07-16-2023, 01:38 PM

There is a bulletin on this- could be the crankcase ventilation system issue built into the valve cover.

05-21-2023, 12:32 PM	#1
Javaq New Member 2 Rep 12 Posts Drives: BMW 4-series Join Date: Jan 2023 Location: Europe iTrader: (0)	Check engine light - Mixture too rich (118002) A little while ago Check engine light appeared. I read fault codes with BimmerLink and reason for fault was "Mixture too rich - 118002"). I cleared fault codes and couples of days it was OK but then again, check engine light apperead. Engine runs well in high speeds - really no issues. Only in slow speeds and idling sometimes the engine runs a little poorly and shakes from time to time. Has anyone else has this issue and any clues what it could be? 2015 model and about 65k miles.
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05-22-2023, 10:59 PM	#2
Orange fever Colonel 2351 Rep 2,829 Posts Drives: E36M,E46M,E90M,X5M,i3,M2,i8 Join Date: Dec 2007 Location: SoCal. in the hood!!! iTrader: (5)	Maybe try replace this: I did and the check engine light bye bye __________________ BMW I12 i8 Frozen Yellow- H&R springs, 22" Radenergie F10 Monoblock Forged /// F87 M2 Aw -Vorsteiner Aero Kit, VFF-107,Macht Schnell-Springs,VF-Engineering/Hex tuning Stage Two,ER DP,Stock Exhaust,Drop-In Bmc Filter,AA Intercooler,FTP Charge pipe+boost pipe/// Wish list :Mexico delivery 2024 BMW M2 (G87)
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05-23-2023, 07:24 PM	#3
Johnny i8 Registered 0 Rep 2 Posts Drives: BMW i8 Join Date: Apr 2023 Location: Midwest iTrader: (0)	2016 48K miles. Similar issue...some low speed engine performance variability and check engine light...turned out to be O2 sensors. BMW dealer checked for leaking fuel injectors but isolated to O2 sensors...they replaced the O2 sensors and runs great now.
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07-16-2023, 01:38 PM	#4
MilehighM3 Brigadier General 915 Rep 3,456 Posts Drives: Harrop E90 M3 Join Date: May 2011 Location: Colorado Springs iTrader: (14) Garage List 2009 E90 M3 [6.50]	There is a bulletin on this- could be the crankcase ventilation system issue built into the valve cover.
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