I read a while back that there was some mod for the coolant temp sensor that changed the temp sensor from a 2 wire to a 3 wire, or vice versa . Can some one please explain this a little more? I believe the purpose was to have a more accurate temp reading on the gauge inside the car. I need to replace the temp sensor in the water pump. Is this sensor for the gauge or the PCM? Thanks,Shimaze

 

yes, sensor in water pemp is for PCM. Sensor on drivers side is for gauge.