1G Check Engine Light

[Usatuff]

Ok, I know I have at least one problem with the car and that is the factory MAF is no good. I have a 3" GM MAF but can't put it on until I get a wideband. Now, does the CEL double as a factory shift light and should I listen to it? When I am in gear and get to about 4000 RPM the CEL comes on. I shift and it goes off. Then if I am in a gear and get to down to 2000-2500 RPM it comes on again and I shift down and it goes off? Next question to add is I have a horrible idle. It idles from 1400-400 and sometimes even stalls out. How do I reset the TPS and the IAC? Thanks everyone

 

[agentorange313]

Ok, I know I have at least one problem with the car and that is the factory MAF is no good.

If your MAF is bad or unplugged it will set off a DTC/CEL

Now, does the CEL double as a factory shift light and should I listen to it?

I have never heard of this before, I dont think so.

It idles from 1400-400 and sometimes even stalls out. How do I reset the TPS and the IAC? Thanks everyone

You need a mutlimeter if you are going to adjust your TPS.

Are you running ECMlink?

You are not going to have a proper idle if you MAS is shot. Your car needs to calculate the volume of air in and entering you engine. You can not keep idle properly with your current set up. You are going to run excessively rich to compensate.

 

[LiquidX]

+1 for above
Why do you need to wait until you get a wideband do put your mass air sensor on WTF. You need to have either your stock MAF plugged in or the new MAS wired in and running otherwise your car will run worse than ass.

Did the previous owner do any modding on the car i.e. chip it?

 

[Usatuff]

I wanted to get a wideband because I have a 3" GM MAS with the MAFT. Anyway, I just went and put the GM MAF in and adjusted it to my injectors and set it so IF anything it would be a little rich. I'd rather have rich than lean so I'm not 100% sure where it is at fuel/air wise but I do know it is now running a hell of a lot better and no more CEL

 

[91mitsuman]

The cel was just coming on as it was getting way to much fuel any time a cel comes on just get your analog multimeter out and count the sweeps figure out the code. My guess is you had multiple codes coming from the maf issues.

 

[Usatuff]

Yea just one code for the MAF that was it