[paulymu]

Scanned my engine for codes today and got 2 codes but the check engine light isn't on. Code 1: P0172 (system too rich Bank1). Code 2: 118002 (status active-mixture adaption: mixture too fat). Does anyone know what these mean or have an advice?
Thanks in advance.

[HarryTee]

"Too rich" and "too fat". Sounds like first world problems to me.
I don't know these codes but have you tried googling for them?

[dmaxdmax]

Too rich means you're either getting too much fuel or not enough air. I'd imagine the first is much less likely than the second.

If you haven't changed your air filter in a while, that's the first thing I'd do and maybe you'll get lucky.

But, if you don't have a cel, then it could have been just a temporary glitch which registered. Not sure if the dates show on the codes, but they might.

[cfm56d7b]

OP, does your car have any mods?

[paulymu]

Changed the air filter last time i did oil change about 1000 miles ago. Googled the codes and said something about too much gas not enough air. Also said something about air flow sensor or something to that nature. No mods on car either.

[im_an_alien]

Try cleaning the MAF...

[paulymu]

Any tips for cleaning MAF?

[im_an_alien]

Originally Posted by paulymu

Any tips for cleaning MAF?

Just take it out and spray it, let air dry for a bit

[paulymu]

I appreciate the advice

[eluded]

How many miles ?

Any mods ?

[dmaxdmax]

OP...spray the maf with a MAF cleaner and be careful with it...treat it like eggs. There's a very fine wire in it.

Also, a MAF code often points to something else. On my other bmws, it usually meant an air leak, but usually a lean condition. I wonder if our car maybe overcorrects when its got an airleak? I really don't know...but I know that MAF codes don't always mean the MAF is an issue.

[paulymu]

No mods, completely stock with about 54,000 miles. Purchased it with 45,000 miles