rpm gage not working eng. code p0320

Question

2006 kia optima 2.4 litter engine light on code p0320  and RPM gage is in oporative , i dont know if related or not , wher is the sensor controling  the engine speed input  signal ,

Answer 1

The P0320 on your kia is for the Ignition/Distributor Engine Speed Input Circuit:  https://www.autocodes.com/codes.php?code=p0320_kia

The problem could the "Ignition Failure Sensor". Before you replaced the sensor perform a visual check of the sensor harness and connector.