First.
There is no harness on the o2 sensors, prev owner did cut those and connected by himself to extensions. No harness!
My cables is Black, Grey, White, White not green.

I have a tuner, Xcal 2 with custom tune.
Airaid CAI is mounted. I think the rear sensors is turned off in the tune.

 

Ok, is the tune setup for the cai only or cai andlongtube headers. Turning off the rear o2's isn't the only thing required in tuning for longtube headers. The car was already modified when you baught it right. This makes troubleshooting problems harder, not knowing exactly what the previous owner did to the carand how he did it. I don't know what to tell you,I hope youfind out the problem.

 

The tune is for bouth CAI and LTs. When I got it the car was not tuned, they had only changed the exhaust, LTs, and CAI.

 

i had O2 sensor problems with my long tubes......I just took it back to my tuner and he fixed the problem........you should take your car to a tuner and see what he can do. Sometimes LT's cause timing issuses with your O2 sensors.....at least that was my problem