StangKillaLS1

I took the EGR/AIR and took cats off and put 02 sims on, My Service engine lights come on and I ran a 14.3 at the track and I know my cars a low 13/high 12 sec car. Someone told me my cars in a Limp Home Mode and the computer is pulling timing and all kinda of stuff and pretty much making my car slow as ****.
Is there any truth to this??

WS6FirebirdTA00

iTrader: (33)

it shouldnt unless you took the front o2 sensors out too, those are theonly needed things and the others are emissions, i wouldnt think it woudl go in a limp mode because of that

HumpinSS

iTrader: (1)

did you plug all your egr/air lines after removing the stuff. You may have a vaccum leak of some sort. can you pull the codes from the PCM

P Mack

iTrader: (6)

You put the o2 sims only in place of the back o2 sensors right? Yeah, you should definately find out what codes it's throwing.

StangKillaLS1

Yeah I put the 02 sims on the back and kept the 02s up front. I bought off road headers with no EGR and blocked off the intake. Ill go back through and make sure nothing was left out. A friend of mines got LS1Edit, so Ill try and play with that for a little bit.

When we took all the 02's off there where 2 long and 2 short 1's, We put a long and a short up front, would that have anything to do with it??