P0156 DTC on 04 GTO

[mthompson413]

I installed long tube headers on my 04 GTO, and a U1793 ver. 2.07 predator. I've been getting DTC P0156 HO2S Sensor Circuit Bank 2 Sensor 2, and I can't find a way to disable it with the predator. The 02 sensors are disconnected and I don't have any place to put them in the exhaust system. Would a update or custom tune allow me to disable this code?

[goatfeverr]

I have the exact same problem, same version predator and all. I can disable all of the other codes but nowhere can I find P0156 which is o2 sensor malfunction. Any help would be greatly appreciated.

[goatfeverr]

Do the o2 sensors have to remain in the exhaust for this code to not display, I was under the impression that they were completely turned off, is that incorrect. I recently put in a wideband and removed that sensor and began getting the code.

[mikel]

yup, that will do it.

You may be able to disable the codes ina custom tune.