Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHYUNDAI2002XG350 BASEREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (2 OF 2)
2002 Hyundai XG350 Base
Engine Control System Diagnosis (2 Of 2)
2002 Hyundai XG350 BaseSECTION Engine Control System Diagnosis (2 Of 2)
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0300: Random Multiple Cylinder Misfire Detected
- DTC P0301: Cylinder 1 - Misfire Detected
- DTC P0302: Cylinder 2 - Misfire Detected
- DTC P0303: Cylinder 3 - Misfire Detected
- DTC P0304: Cylinder 4 - Misfire Detected
- DTC P0305: Cylinder 5 - Misfire Detected
- DTC P0306: Cylinder 6 - Misfire Detected
- DTC P0320: Ignition Distributor Engine Speed Input Circuit
- DTC P0325: Knock Sensor 1 Circuit
- DTC P0335: Crankshaft Position Sensor A Circuit
- DTC P0340: Camshaft Position Sensor A Circuit
- DTC P0350: Ignition Coil Primary Secondary Circuit
- DTC P0401: Exhaust Gas RECIRCULATION Flow Insufficient Detected
- DTC P0403: Exhaust Gas RECIRCULATION Control Circuit
- DTC P0421: Warm Up Catalyst Efficiency Below Threshold (Bank 1)
- DTC P0431: Warm Up Catalyst Efficiency Below Threshold (Bank 2)
- DTC P0441: EVAP Emission System Incorrect Purge Flow
- DTC P0442: EVAP Emission System - Leak Detected (Small Leak)
- DTC P0443: EVAP Emission System - Purge CTRL. Valve Circuit
- DTC P0446: EVAP Emission System - Vent Control Circuit
- DTC P0451: EVAP Emission System - Pressure Sensor Range Performance
- DTC P0452: EVAP Emission System - Pressure Sensor Low Input
- DTC P0453: EVAP Emission System - Pressure Sensor High Input
- DTC P0455: EVAP Emission System - Leak Detected (Large Leak)
- DTC P0456: EVAP Emission System - Leak Detected (Very Small Leak)
- DTC P0460: Fuel Level Sensor Circuit
- DTC P0461: Fuel Level Sensor A Circuit Range Performance
- DTC P0462: Fuel Level Sensor A Circuit Low Input
- DTC P0463: Fuel Level Sensor A Circuit High Input
- DTC P0506: Idle Air Control System - Rpm Lower Than Expected
- DTC P0507: Idle Air Control System - Rpm Higher Than Expected
- DTC P0510: Closed Throttle Position Switch
- DTC P0551: Power Steering Pressure Sensor Circuit Range Performance
- DTC P0560: System Voltage
- DTC P1110-P1171: Throttle Actuator Control System - Stuck Open
- DTC P1110-P1172: Improper Motor Current - ETS
- DTC P1110-P1173: Improper Motor Voltage - ETS
- DTC P1110-P1174: Throttle Actuator Control System - Stuck Closed
- DTC P1110-P1175: Throttle Actuator Control System - Stuck Closed
- DTC P1118-P1176: Throttle Actuator Control Motor Circuit Low
- DTC P1118-P1177: Throttle Actuator Control Motor Circuit High
- DTC P1118-P1178: ETS Relay - Mal
- DTC P1155: Limp Home Valve - Mal
- DTC P1159: Variable Intake Motor Rotation SNS
- DTC P1192: ETS Limp Home - Target Following Malfunction
- DTC P1193: ETS Limp Home - Low Rpm
- DTC P1194: ETS Limp Home - TPS2 Malfunction
- DTC P1195: ETS Limp Home - Target Following Delay
- DTC P1196: ETS Limp Home - Closed Throttle Stuck
- DTC P1330: Spark Timing Adjust
- DTC P1607: ECM - ETS Communication Line - Malfunction (Ems-ETS)
- DTC P1608: ECM - ETS Communication Line - Malfunction (ETS-Ems)
- DTC P1613: Computer Communication Ems-ETS Malfunction
- DTC P1614: ETS Ecu-Malfunction (EEPROM RW)
- DTC P1615: Computer Communication ETS-Ems Malfunction
- DTC P2120: Acceleration Position Sensor 1 Circuit
- DTC P2122: Acceleration Position Sensor 1 Circuit Low Input
- DTC P2123: Acceleration Position Sensor 1 Circuit High Input
- DTC P2125: Acceleration Position Sensor 2 Circuit
- DTC P2127: Acceleration Position Sensor 2 Circuit Low Input
- DTC P2128: Acceleration Position Sensor 2 Circuit High Input
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.