Nissan Trouble Fault Code P0120 Diagnosis Repair Throttle Po

P0120 is for Throttle Position Sensor.

IF you get this code, you have a bad sensor, replace it or test with like this:

connect an OHM metter to pins 3 and 2 of the sensor, now open the throtle and you should see the OHM readings change. if you see change, check wiring and make sure connections are good. otherwise, you may need to replace the sensor.