p0172 System running too rich
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p0172 System running too rich
So out of the middle of nowhere I get a check engine light that says that I am running too rich. This is a little strange since my car is programmed to run about .25% lean. Is there a common fix to this? Not sure if the MAF sensor is dirty or if my injectors are leaking or what.
andizzle34- BMMC Enthusiast
- Number of posts : 41
Age : 32
Location : Muskogee
Car Type : Ford Mustang GT
First Name : Andy
Registration date : 2009-07-18
Re: p0172 System running too rich
Flash to stock and re-load your tune. Ive had the same thing happen. It should go away. Might take a couple of flashings
Last edited by Grabber07' on 9/23/2009, 11:18 pm; edited 1 time in total
Guest- Guest
Re: p0172 System running too rich
Hard to tell... Could be an error or nothing at all. I normally do a reset and see if it pops up again. I've gotten several errors before, did a reset and it never happened again. Sometimes when the weather changes, for example get cool real quick, the computer won't adjust / learn quick enough.
If I remember... you do have a custom tune correct? I'm assuming you do...
If I remember... you do have a custom tune correct? I'm assuming you do...
BMMC1- BMMC Board Member
- Number of posts : 13771
Age : 57
Location : Tulsa
Car Type : 2011 Shelby GT500
First Name : Paul The DILF
Registration date : 2008-03-09
Re: p0172 System running too rich
yeah steeda built it.. idk why i said .25% leaner but its 2% leaner than the steeda tune.. im not sure how lean is too lean though but il try reflashing ans see if that works thanks
andizzle34- BMMC Enthusiast
- Number of posts : 41
Age : 32
Location : Muskogee
Car Type : Ford Mustang GT
First Name : Andy
Registration date : 2009-07-18
Re: p0172 System running too rich
Let us know how it works Andy.
BMMC1- BMMC Board Member
- Number of posts : 13771
Age : 57
Location : Tulsa
Car Type : 2011 Shelby GT500
First Name : Paul The DILF
Registration date : 2008-03-09
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