So I'm heading back home from class the two days ago, and I start my car to find that my check engine light comes on. I take it to the auto part store and have then put their computer to it and tell me the code. Its telling me my system is running too lean on bank 2. I had the computer reset, filled up with a fresh tank thinking maybe i got a bad tank, put some fuel injector cleaner in there and went on my way. Today, my light came back on. Any possible answers? Any advice is appreciated, thanks.

 

faulty sensor, go to dealer if under warranty and ur good

 

^ dont be so sure...

last winter, with just an AEM intake, and then with my ATLP exhaust... i threw a CEL about once or twice a week for a couple of hours.. it was always BANK 1 TOO LEAN ot BANK 2 TOO LEAN... the light would always go away

The only reasonable explaination i could come up with, and the acura service guys said, was its the winter mix fuel

I NEVER get that code in the summer, but already threw it twice last week

 

Yea it got really cold here lately. I'm in SC and it went from 75-80ish to like high 20's-mid 30's. Maybe thats it!

 

^ most likely.... if not, it is an 02 sensor.. but a few members have had this problem.. i think the code was like P0193 or P0194.. i cant remember

 

I had the same prob and they replaced the sensors...

 

I agree prob a O2 sensor gone bad. if under warranty have it replaced. Bad fuel mixture is also posible.

 

I had it checked out by Acura today. They said I have bad fuel injectors and are replacing all 6 on tuesday. Since its still under warranty, im absolutely pleased since I'm not only going to get better gas mileage, but better performance too!

 

Wow, that is surprising, fuel injectors dont easily just go bad. There must have been something that caused them to go bad, additive or something, not saying its your fault

 

Glad to hear that they are gonna replace them!

 

valves are loose or bent , clogged or frezzing injector, headgasket.