Possible causes – Dirty Fuel Injector 8– Faulty Fuel Injector 8– Plugged Fuel Injector 8– Fuel injector 8 harness is open or shorted– Fuel injector 8 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Oil– Engine mechanical problems– Camshaft timing incorrectly set– Faulty camshaft position sensor– Faulty crankshaft position sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0018 KIA Description The CVVT (Continuously Variable Valve Timing)

Possible causes – Dirty Oil– Engine mechanical problems– Camshaft timing incorrectly set– Faulty camshaft position sensor– Faulty crankshaft position sensor– Faulty actuator assembly Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0016 KIA Description The CVVT (Continuously

Possible causes – Dirty Oil– Engine mechanical problems– Camshaft timing incorrectly set– Faulty camshaft position sensor– Faulty crankshaft position sensor– Faulty actuator assembly Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Dirty Oil– Engine mechanical problems– Camshaft timing incorrectly set– Faulty camshaft position sensor– Faulty crankshaft position sensor– Faulty actuator assembly Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Drive-by-wire control system malfunction– Throttle actuator malfunction– Throttle valve malfunction– PCM malfunction Tech notes Dirty or clogged throttle body can triggered the P0638 code. Before replacing any parts try cleaning the throttle body and reset the engine

Possible causes – EGR passage clogged– Faulty EGR Vacuum Modulator Valve– Faulty EGR Valve– Faulty EGR solenoid valve– EGR solenoid valve harness is open or shorted– EGR solenoid valve circuit poor electrical connection– Dead (Weak) battery– Faulty EGR temperature sensor

Possible causes – Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming– Faulty Engine Control Module (ECM) Tech notes Check the ECM fuse, if fuse is OK try erasing the code first

Possible causes – Engine Control Module (ECM) may be faulty– ECM harness power supply circuit is open or shorted– ECM harness ground circuit is open or shorted Tech notes Check the ECM fuse, if fuse is OK try erasing the

Possible causes – Engine Control Module (ECM) not programed– ECM program– Faulty ECM– Wrong ECM Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0602 KIA Description This diagnostic trouble code (DTC) indicates a programming error within the

Possible causes – Engine Control Module (ECM) Programming error– Vehicle Identification Number (VIN) not programmed to ECM– Faulty or wrong ECM Tech notes If a new ECM is installed in a vehicle, the Vehicle Identification Number (VIN) has to be

Possible causes – Faulty Air Conditioning Clutch Relay– Air Conditioning Clutch Relay harness is open or shorted– Air Conditioning Clutch Relay circuit poor electrical connection When is the code detected? Code P0646 may be stored if an open or short

Possible causes – Faulty Air Conditioning Clutch Relay– Air Conditioning Clutch Relay harness is open or shorted– Air Conditioning Clutch Relay circuit poor electrical connection When is the code detected? Code P0647 may be stored if an open or short

Possible causes – Faulty Air Conditioning Clutch Relay– Air Conditioning Clutch Relay harness is open or shorted– Air Conditioning Clutch Relay circuit poor electrical connection When is the code detected? The P0645 code is stored if an open or short

Possible causes – Faulty battery– Generator drive belt missing or loose– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection Tech notes If the battery is OK then the alternator is more than likely the problem.

Possible causes – Faulty battery– Generator drive belt missing or loose– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection Tech notes If the battery is OK then the alternator is more than likely the problem.

Possible causes – Faulty Brake Switch– Misadjusted Brake Switch– Brake Switch harness is open or shorted– Brake Switch circuit poor electrical connection Tech notes Check if the stop light works with the brake pedal, if the brake lights are inoperative,

Possible causes – Faulty Brake Switch– Misadjusted brake switch– Brake Switch harness is open or shorted– Brake Switch circuit poor electrical connection When is the code detected? The P0571 codes is set when the stop light switch does not turn