SES light after headers

[Ricky21]

after my headers were on my car threw a p1133 code, manufacturer control fuel air meterains. whats than mean and what do i gotta do to fix it

 

[gtpinsc]

did u extend o2 wires or extend o2 harness?

 

[Ricky21]

yea i got an extension harness on it

 

[gtpinsc]

hmmmm its o2 related. any extension or o2 wires burned maybe?

 

[Ricky21]

i dont think so when i checked it last everything looked good no wires touching the headers, i think i have a small leak coming from where the front header bolts to the engine that could possibly be it? i also deleted my cat couldnt that do it because of the rear o2

 

[gtpinsc]

usually p0420 pops up for no cat... thats the only code i have present for not having a cat... i dunno bout a exhaust leak causing it.

 

[Ricky21]

hmm i dono what else it could be

 

[BoostJunki3]

its an exhaust leak b4 the o2 sensor....usually at the collector...i had the same problem till i got all my leaks fixed....your leaking somewhere....that code is for inefficient switching of the narrowband o2 sensor which means it thinks your running lean right now since so much air is in your exhaust readings due to the leak.

 

[Ricky21]

thats what i was thinking any ideas why it would be leaking straight off the head like that? i tightened down the bolts as much as i could, i have a feeling i have a leak at my EGR too il have to RTV it

 

[hourang]

what manifold gaskets did you use?

 

[Ricky21]

the ones that came with them, i was thinking about getting some GM ones would that be better?

 

[Bio248]

yes, get some GM or felpros. those will work a million times better.

 

[Ricky21]

ok thanks alot should i do the same with the gasket where the straight pipe meets the stock exhaust? because i cant get that to seal good

 

[hourang]

yes, get some GM or felpros. those will work a million times better.

x2

 

[BoostJunki3]

the ones that came with them, i was thinking about getting some GM ones would that be better?

i reused the stock ones and i have no leaks.....(aluminum)

 

[01gpgt01]

I have two leaks at the crossover front and collector. I also have the same code and my LFT's are maxed and the 02 at idle sits at 50 and doesnt switch between high and low values. I used no RTV or sealant on my slip joints. Im gonna try some and see what happens. Glad I came across this Ive been trying to figure out WTF is going on. I thought it was a vac leak but coudnt find one:th_thumbsup-wink: