Hello, I am using MPVI 2 and i have 2003 Jeep Grandcherokee and my O2 sensors turning on my Check engine light. It disturbing me and i tried to off my car's O2 sensors. It doesn't have DTC table on engine diagnostic section. I disabled all of the things about O2 sensors but my check engine light is turning on again. Can anyone please help me about this problem ?