chev 350 qeustion

runner over · Mar 28, 2009

95 chev tahoe... my truck had ben way underpowerd for a few days and today it threw a code 12? could it be my control module? any other ideas ? i just changed plugs, wires, cap, rotor, and fuel filter all last week. and its ben running great until this. thanks:awesomework:

crash2 · Mar 28, 2009

It threw a code 12? Did the ses lamp come on? Or did you check for codes and get a code 12? And how did you check for codes...

zukkev · Mar 29, 2009

code 12 is the 'all clear' code isn't it?? :eeek

can't remember-been awhile since working on OBDI stuff..)

crash2 · Mar 29, 2009

zukkev said:
code 12 is the 'all clear' code isn't it?? :eeekcan't remember-been awhile since working on OBDI stuff..)

state of health for the ecm----if it ain't there then you have something wrong

zukkev · Mar 29, 2009

Ahh, grasshoppa remember now!!! :awesomework: I knew it was something like that---if you don't see 12, you've got a problem Houston...:awesomework:

Binder · Mar 29, 2009

12 is engine not running. It's always there when you check codes.

Brian H · Mar 29, 2009

I wouldnt be suprized if the fuel pump is taking a **** again. It did that to me beofre i changed it out the first time. Im guessing this is what vehicle we are talking about?