05 jeep unlimited

Question

i've replaced all four heating censors and had the monitor re-build, but still getting the following codes p-0031, 37,51,57. what am i missing??

Answer 1

HI there,

This could be a grounding issue. Check all the grounds you can find in the engine compartment and make sure they are clean and tight. The sensors sometimes use the exhaust system itself for the ground, if that's the case and there is a grounding issue, then the sensors will not work properly.