Faulty Throttle Position (TP) Sensor
Throttle Position (TP) Sensor harness is open or shorted
Throttle Position (TP) Sensor circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
Lock-Up Clutch Not Engaging is the generic description for the P1790 Acura code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information
about the P1790 Acura OBDII code.