Hey all, I've searched all over the forums on how to measure the voltage on a TPS on an r33 but haven't found a detailed description. I know that you loosen the 2 screws and rotate it to adjust it, but when it comes to measuring the voltage I'm hopeless lol I just bought a multimeter yesterday and it came with 2 wires.. a black one and a red one. Do I just ground the black one somewhere on the car chassis? Also with the red one do I measure the harness that comes out of the bottom of the Tps or the plug that plugs in the side of the tps and do I measure it with the car switched on and idling? I've also attached a picture of the multimeter I purchased and was wondering which mode its meant to be on when measuring the tps? Thanks!