blown97ss

iTrader: (8)

i need some input on guys running pacesetter headers. has anyone had trouble tunning with them cuz ive been trying to get my car to run right but the o2 sensors are way off. bank 1 will be giving fuel at idle while bank 2 will be taking fuel away. ive already double checked the intake manifold all the fitting, and everything is all sealed up. im going to be putting some hooker headers on and see if that fixes my problem. just wanted to know if anyone else has had the same or similar problem with pacesetter headers.

tricked94camaro

iTrader: (1)

what you using for the tune?

blown97ss

iTrader: (8)

they r using hp tuner. it did it with the original computer, then i changed it out to the efi ls1 computer setup and still same thing.

Fazz73jr

iTrader: (3)

You sure you don't have an exhaust leak? Or even a bad o2/ burnt wire?

blown97ss

iTrader: (8)

yeah no exhaust leak, its a brand new harness,and o2 are new ac delcos. just got finished with the exhaust the scanner will let me know if the header swap fixed it. just have to wait till tomorrow. i was also reading up on the bbk throttle bodies and how they need to be adjusted, i will give that a try tomorrow or might just put the stock one on to see if that helps.

blown97ss

iTrader: (8)

finally got it running good now. and i got some info on the hookers. if anyone really thinks they r much better than pacesetters check this out absolutely no power gains with them on my car with a cutout.

RamAir95TA

iTrader: (2)

There is undoubtedly more to this than meets the eye.

Headers alone don't cause issues, unless they were brand new and any oil/crap burned off and fouled out the O2s. You can't blame the header.

LT1

iTrader: (1)

Besides doing the header swap, what other changes did you make?

blown97ss

iTrader: (8)

i covered the idle air control valve passage way on the bbk throttle body and made it so the hole lined up with the manifold hole and drilled a small hole through it. i also found out i had the brake booster hooked up to the wrong port on the edelbrock manifold. but i was wondering y the hooker headers and the cutout didnt make any hp on the dyno.