I HAD A CAT INSTALLED MAN..... still got my CEL.

 

dude make sure that all 02 sensors are properly installed

remember my car didnt idle?

other then that it didnt change anything, but my air fuel ratio was very bad.

i found out my car is running lean

 

Well thanks for the replies. I went ahead and bought a catco hiflow cat, and I will install the o2 sensor after the cat. Hopefully I won't get a cel.

 

where is the 1st o2 sensor located?

 

well... its under the heat shield on your manifold... plugs in right there on the right side... ya cant miss it dude.

BTW: i just got my code read at autozone... something about a catalyst above threshold... whatever the hell that means, not to but does anyone wanna try and help me with this... he also told me that he thought it was the first sensor?!?!

 

where is the heat shield
remember i have 421 headers
and no cat

 

if you have headers, your heat shield should be gone

 

ook... headers.... its on the 4th pipe... left to right it goes 1234... its on the one on the furthest right. it sticks right out of the dern pipe mang... unless you didnt have that 02 bung... if you didnt, you may not even have the damn thing installed on the header. better get to lookin around.

 

yea i definitly think i dont have that b*tch installed
would an o2 bung work if not what would

 

you're gonna' have to do the same thing that i'm stuck with.

when you get your exhaust done, have them make a second O2 sensor bung after your cat where their first pipe is gonna' be. the ORIGINAL 2nd bung (the one on the flex pipe) is going to be your money spot for sensor #1, but you'll have to get the wires to BOTH sensors lengthened more to make this work.

hope that helps