Test drove the vehicle today and it runs great and pulls hard but still stalls at idle. Pulled codes P1505 "IdleAir Control Valve-Low voltage" and a P1507 "Idle Air Control Valve Closing Voltage Low". So I probed the voltage feed at the connector to the IAC and am getting 5 volts. Without a Kia manual or specs I don't know if that's low or normal for the Kia. I also removed the IAC and cleaned it, also fed battery voltage to the center terminal of the IAC and grounded each outside terminal in turn and it seemed to react and function. I find all this very interesting but I would sure like to fix the idle speed on this car, any ideas?
Saturday, December 13th, 2014 AT 9:04 PM