I just installed my pacesetter headers and ORY. Now my truck isnot running right... When i put it in gear it bogs down to bout 500rpm then wile im driving if i give it some gas it goes down then sometimes salls. Is it because the rear o2's arnt hooked up? Or do i need to tune? HELP!!

 

It most likely is caused from being very rich. you will need a tune to correct it.
One thing to look for is exhaust leaks that could be letting air into the pipes around the front o2's. If air was getting in there the o2's would tell the PCM that its lean and cause the PCM to dump a bunch of fuel into it.

 

May take a bit to "learn" things again... if you are lucky. If not look for leaks, cracked plugs, plug wires on good kind of stuff and 02's not screwed up.

 

I just drove it about 50+/- miles....it seemed to be a little better, but i can deffinetly tell that is has some leaks. I also need to make sure that all the plug wires are on tight..is it safe to drive it? thanks for the quick replys!!

 

Should be safe to drive just check all the things you mentioned above!

 

And make sure the O2 wires are not touching the headers etc...heat seems to cause the signal to get screwed up and make the truck run like ***.

 

check the plugs to . i had 2 crack plugs that made my truck run like crap.

 

Thanks for the replys. I put the my truck on the scanner at school and no misfires just a bunch of codes for the o2 sensors. I also noticed that its running really rich which some stated above, now i just need to get some money and get a damn tune....what did you guys toruque your header bollts to?