I recently ran into an odd error in my stock '91 NSX. The error code related to the TW sensor. It appears that there are three coolant temperature sensors. One for the ECU (near the front bank of cylinders), one for the fans (near the rear bank of cylinders) and one for the gauge (near the themostat). I tested the TW sensor (adjacent to the front bank) and its resistance values weren't correlating well with the graph listed on page 224 of the service manual which likely is why the ECU kicked up an error. Before embarking on a senseless replacement mission, I decided to test out whether the sensor was truly bad and place a potentiometer across the pigtail and the car ran better. Great! Except one problem, I can't for the life of me figure out how to remove the sensor. It doesn't fit any sockets that I have for there are no edges to the sensor that fit a socket.
Does anyone know how to remove this sensor? Is there a special tool?
Does anyone know how to remove this sensor? Is there a special tool?