Boost Fr33k

so lately ive been getting a random CEL here and there. what i mean by that is whenever i drive for a long time period it goes on and then goes away after a day or so. so i brought it in to the dealership and turns out i was throwing out a P0171 "FUEL TRIM LEAN". the guy told me that i was running on a outdated ecm program so they reflashed it. program claim code 105AE. not much of a difference i felt, but it is a little smoother [deff]

any1 else get this problem?

XM15

Its your intake. I have a CEL sometimes as well.

Boost Fr33k

no its not because ive been getting the same CEL well before i got my intake.

BlackyK

I got that same problem. I got a reflash but I got another CEL, which went away a few days ago. I don't know if it was the same code or not.

Super_SS

perfectly fine hear...drove 95 miles to my soccer game one way and no code...i have the air box mod

bluecobaltss06

I'm a tech at a chevy dealer. There is a updated ECM reflash for the p0171 code. It's common on the cobalts no matter what motor. It does fix it as far as I know. I haven't had any come backs from it.

Boost Fr33k

i havent got a CEL yet, take it back to the dealer. ask em

shortyhend2004

Wow soo glad i never knew that haha. I get this code alot. I have the aem and ss exhaust?

Cobalt_Supercharged

I got that a few times, but I think it was becasue my o2 sensor was going bad. My tech at the dealership also has an 05 Cobalt SS/SC (actually the first one in the state) and he keeps up on the reflashes, so I'm sure I'm up to date.

Shermen

I have the intense stage3 kit and an intake, and if i don't keep the rpms up the code seems to come back on.

it doesn't even bother me any more.

Toronto SS

I've never had a single CEL on my 05.

I probably just jinx'd myself lol

c24na

Anyhow have hpt to safe their tune and send it to me ?

Nate

05sedan

i get a cel for lean on my 2.2 when i have the cai on...but sri...no cel