Car is tuned with LS1 Edit.The rear sensors are shut off.Now the problem i'm having is 02' not switching properly on bank 1&2.Car has SLP LT's on it also put GM 28lb injectors and the tune is for 26's.Changed out the driverside 02 yesturday,cleared codes then scanned them to day cause the light was and still not changing properly.02's are Bosch 1311's
Thanx BTLFEDSS

 

What codes?

 

Are you sure the o2's arent bad?

 

Here are the codes don't know what the deal is what is the fix?
P1133 P0134 P0154 P1153

I know what they mean just not sure how to fix'm
BTLFEDSS

 

Suggestions?
BTLFEDSS

 

Read through this https://ls1tech.com/forums/pcm-diagnostics-tuning/583508-i-called-bosch-tech-re-slow-oxygen-sensors.html for the 1133 and 1153. Look at reply #29 since that is your tuner. Might want to check back with him. You need to get the injectors scaled correctly in the program anyway. Without seeing a scanner display of your car, it's hard to say if you just have lazy O2s or if they are not switching at all since you are getting 0134 and 0154 too. More info on when the problem started might help also.