plaf713

iTrader: (8)

my ses light is on and when i scan it this code somes up. I have searched on it in this forum, found a lot of info on long tube headers how they dont work but i have stock manifolds, does this mean that my actual O2 sensors are bad or that i need to tune them out, car is a 2000 z28 stock.

thanks

2001NBMZ28

P1133 is Insufficient Switching bank 1, sensor 1 (drivers side precat sensor). Could be an exhaust leak near the sensor, wiring, corroded connector, etc. You can look up the diagnostics at gearchatter.com for your year. Don't want to tune it out - you need the precat sensors. Probably just a bad sensor it the code keeps coming back.

plaf713

iTrader: (8)

car also misses off idle, could the sensor cause that?

BigBirdTA

Yes it can.

plaf713

iTrader: (8)

alright cool, thanks for the help guys