Headers

[02superfly]

I just installed a new pair of pacesetter headers and left the stock cat back now my car runs like crap. During acceleration my car bogs bown and back fires. I also experienced an extreme loss in power especially at take off.
Any ideas of what could be causing my car to run so shitty.

[sunsetorangess]

What codes are you throwing? Did you use 02 extensions or attempt to splice the old ones? Any exhaust leaks? Loose plug wires? Chipped plugs?
J

[suede]

gotta be something with your O2 sensors, b/c i still have my stock catback on mine with kooks headers and no problems, you also may just be running horribly rich, that would cause your symptoms...

[02superfly]

there are no codes, spliced the O2 sensors, new plugs and wires, fuel pressure was at 62psi at idle

[suede]

there are no codes, spliced the O2 sensors, new plugs and wires, fuel pressure was at 62psi at idle

theres your problem....

[Sarge]

O2 sensors are toasted.

[WS6ICK]

Should have bought the O2 extensions and not spliced them.

[Wesman]

Should have bought the O2 extensions and not spliced them.

Exactly. When you're dealing with millivolts, splicing doesn't work so well.

[0rion]

theres your problem....

agreed.....get some pre-made extensions and that should fix you up. Also, make sure you don't have the fronts plugged into the rears. The front connectors drop down off the k-member.

[thearborbarber]

Also the coating on headers has been known to contaminate O2s during the initial heat up.

[02superfly]

if the o2 sensors are out would the check engine light come on and would the catalytic converter have anything to do with the backfiring

[0rion]

it definitely sounds like an o2 issue but I would almost bet you it's those home made extensions. I've seen it a bunch of times. People use those and have issues.