I just had 60# injectors and a 2.8" pully installed and tuned a few days ago and my check engine light came on yesterday. It turned off before I could check it but then came on again today. I pulled the code and it reads:

P0172 - Fuel Trim System Rich Bank 1 (SES) (Old) (History) (Immature)

Any ideas? I'm supposed to take a long road trip tomorrow and I have the feeling I might be F'ed!

bump for help!!!

 

your running rich, get retuned immediatly or your car will blow up!!!!!! J/K You will be fine you just need to be leaned out..

 

RICH? The humanity! Someone was doing a conservative tune.

Yeah really...running rich isn't horrible, now if it's horribly lean you'll have problems.

 

yes rich is awsome........ all that gas being wasted =\

 

Ok, good. While I figured that was probably it needing the car for a trip tomorrow had me fearing the worst. Thanks for the reasurances guys!

 

Damage wise it's not bad. The sheiks will be happy though...doobie doobie a new mcclaren

 

do you have something to monitor long term fuel trims like interceptor? if so anything + or - 14 or 18 cant remember right now will throw that or the p0171 code which is lean

youll be fine on your trip... you might be down 2 or so mpg nothing that will kill the wallet! but have the tuner take a look at it and log your fuel trims tell us what they say!

 

I actually threw that code when my copper plugs were getting old. Of course I was throwing a missfire code too, that would explain why I was rich.