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.
2017 Kia Niro EXFACTORY OEM SERVICE PROCEDURE
Engine Control System Diagnosis (3 Of 6)
- DTC Index
- DTC P0263-00: Cylinder 1 Contribution/Balance
- DTC P0266-00: Cylinder 2 Contribution/Balance
- DTC P0269-00: Cylinder 3 Contribution/Balance
- DTC P0272-00: Cylinder 4 Contribution/Balance
- 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 P0315-00: Crankshaft Position System Variation Not Learned
- DTC P0326-00: Knock Sensor 1 Circuit Range/Performance
- DTC P0335-00: Crankshaft Position Sensor 'A' Circuit
- DTC P0336-00: Crankshaft Position Sensor 'A' Circuit Range/Performance
- DTC P0340-00: Camshaft Position Sensor 'A' (Intake) Circuit (Bank 1 Or Single Sensor)
- DTC P0341-00: Camshaft Position Sensor 'A' (Intake) Circuit Range/Performance (Bank 1)
- DTC P0351-00: Ignition Coil 'A' Primary/Secondary Circuit
- DTC P0352-00: Ignition Coil 'B' Primary/Secondary Circuit
- DTC P0353-00: Ignition Coil 'C' Primary/Secondary Circuit
- DTC P0354-00: Ignition Coil 'D' Primary/Secondary Circuit
- DTC P0365-00: Camshaft Position Sensor 'B' (Exhaust) Circuit Malfunction (Bank 1)
- DTC P0366-00: Camshaft Position Sensor 'B' (Exhaust) Circuit Range/Performance (Bank 1)
- DTC P0401-00: Exhaust Gas Recirculation Flow Insufficient Detected
- DTC P0404-00: Exhaust Gas Recirculation Control Circuit Range/Performance
- DTC P0405-00: Exhaust Gas Recirculation Sensor A Circuit - Low
- DTC P0406-00: Exhaust Gas Recirculation Sensor A Circuit - High
- DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1)
- DTC P0441-00: Evaporative Emission System Incorrect Purge Flow
- DTC P0442-00: Evaporative Emission System - Leak Detected (Small Leak)
- DTC P0444-00: Evaporative Emission System - Purge Control Valve Circuit Open
- DTC P0445-00: Evaporative Emission System - Purge Control Valve Circuit Shorted
- DTC P0447-00: Evaporative Emission System - Vent Control Circuit Open
- DTC P0448-00: Evaporative Emission System - Vent Control Circuit Shorted
- DTC P0449-00: Evaporative Emission System - Vent Valve/Solenoid Circuit
- DTC P0451-00: Evaporative Emission System - Pressure Sensor/Switch Range/Performance
- DTC P0452-00: Evaporative Emission System - Pressure Sensor/Switch Low Input
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.