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.
2021 Kia Rio LXFACTORY OEM SERVICE PROCEDURE
DTC Index
DTC INDEX
| DTC | Description |
|---|---|
| DTC P0221 | 00: Throttle Position Sensor 2 Signal Circuit Range/Performance |
| DTC P0222 | 00: Throttle Position Sensor 2 Signal Circuit Low Input |
| DTC P0223 | 00: Throttle Position Sensor 2 Signal Circuit High Input |
| DTC P0230 | 00: Fuel Pump Primary Circuit |
| DTC P0261 | 00: Cylinder 1 Injector Circuit Low |
| DTC P0262 | 00: Cylinder 1 Injector Circuit High |
| DTC P0264 | 00: Cylinder 2 Injector Circuit Low |
| DTC P0265 | 00: Cylinder 2 Injector Circuit High |
| DTC P0267 | 00: Cylinder 3 Injector Circuit Low |
| DTC P0268 | 00: Cylinder 3 Injector Circuit High |
| DTC P0270 | 00: Cylinder 4 Injector Circuit Low |
| DTC P0271 | 00: Cylinder 4 Injector Circuit High |
| DTC P0300 | 00: Random Multiple Cylinder Misfire Detected |
| DTC P0301 | 00: Cylinder 1-Misfire detected |
| DTC P0302 | 00: Cylinder 2-Misfire detected |
| DTC P0303 | 00: Cylinder 3-Misfire detected |
| DTC P0304 | 00: Cylinder 4-Misfire detected |
| DTC P0326 | 00: Knock Sensor 1 Circuit Range/Performance (Bank 1) |
| DTC P0335 | 00: Crankshaft Position Sensor 'A' Circuit |
| DTC P0336 | 00: Crankshaft Position Sensor 'A' Circuit Range/Performance |
| DTC P0341 | 00: Camshaft Position Sensor 'A' (Intake) Circuit Range/Performance (Bank 1) |
| DTC P0342 | 00: Camshaft Position Sensor 'A' (Intake) Circuit Low Input |
| DTC P0343 | 00: Camshaft Position Sensor 'A' (Intake) Circuit High Input |
| DTC P0366 | 00: Camshaft Position Sensor 'B' (Exhaust) Circuit Range/Performance (Bank 1) |
| DTC P0367 | 00: Camshaft Position Sensor 'B' (Exhaust) Circuit Low |
| DTC P0368 | 00: Camshaft Position Sensor 'B' (Exhaust) Circuit High |
| DTC P0401 | 00: Exhaust Gas Recirculation Flow Insufficient Detected |
| DTC P0403 | 00: Exhaust Gas Recirculation Control Circuit |
| DTC P0404 | 00: Exhaust Gas Recirculation Control Circuit Range/Performance |
| DTC P0405 | 00: Exhaust Gas Recirculation Sensor A Circuit Low |
Factory Service Tools
Use the Manual With the Right Hardware
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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.