Shortstuff4104

All,

I put on Pacesetter LT's, HiFlo Cats, and a 3 in Y pipe last November. For about a month now the check engine light has been coming on, Code P0157- O2 sensor 2 Bank 2 low voltage. Well, I replaced the damn thing twice and anywhere from 5 minutes to 30 minutes after driving away from the garage, the check engine light comes back on. I monitored the engine on my Diablo tuner this second time around and the voltage right off the bat just drops almost to zero.

Do I have a bad Cat or is it the O2 Sensor 1 Bank 2 that is screwing things up?

Thanks,
Ned

firechicken2k

i'd love to know too, because my car is getting pacesetter long tubes with a 3" ypipe and hi-flow cats as we speak...

Shortstuff4104

.........and YES I disconnected the battery before I did this.

kkkevvvinnn

thats really wierd because mine work fine. The ses light i got was from removing my AIR. I know you loose voltage when you put underdrive pullys without an overdrive alternator but i dont think that has anything at all to do with the 02 stuff. Im sure someone will know though

2kta--89formula

iTrader: (2)

Check your wires and see if any are cut or burnt.

ZodiacZ28

iTrader: (3)

I would like to know also because i just put my kooks on and having simialr problem. Im also getting a lean condition and a low idle warning