Does anyone know which wire color is which? I need to find my wiring problem. I would guess Black is power, which I believe should be 5V? Past that I am guessing. Once TPS plug is removed finding live and ground should be easy; do I need to worry about finding the signal wire (0.2V right?) (other than inspecting all the wiring for wear). If I am lucky There will be some worn insulation so the fix will be easy. Otherwise I need to find a bad ground I am guessing? Should any one have a diagnostics procedure or flow chart I would be REALLY grateful. Thanks again! Note Throttle position sensor has already been replaced, this is no longer intermittant and occors most days at start up.