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.
2019 Kia Optima EXFACTORY OEM SERVICE PROCEDURE
Engine Control System Diagnosis (5 Of 6) (PHEV)
- DTC Index
- DTC P2096-00: Post Catalyst Fuel Trim System too Lean (Bank 1)
- DTC P2097-00: Post Catalyst Fuel Trim System too Rich (Bank 1)
- DTC P2101-00: Throttle Actuator Control Motor Circuit Range/Performance
- DTC P2118-00: Throttle Actuator Control Motor Current Range/Performance
- DTC P2119-00: Throttle Actuator Control Throttle Body Range/Performance
- DTC P2122-00: Accelerator Position Sensor 1 Signal Circuit Low Input
- DTC P2123-00: Accelerator Position Sensor 1 Signal Circuit High Input
- DTC P2127-00: Accelerator Position Sensor 2 Signal Circuit Low Input
- DTC P2128-00: Accelerator Position Sensor 2 Signal Circuit-High Input
- DTC P2138-00: Accelerator Position Sensor 1 & 2 Signal Voltage Correlation
- DTC P2147-00: Fuel Injector Group 'A' Supply Voltage Circuit Low
- DTC P2148-00: Fuel Injector Group 'A' Supply Voltage Circuit High
- DTC P2150-00: Fuel Injector Group 'B' Supply Voltage Circuit Low
- DTC P2151-00: Fuel Injector Group 'B' Supply Voltage Circuit High
- DTC P2159-00: Vehicle Speed Sensor 'B' Range/Performance (Wheel Speed Sensor)
- DTC P2195-00: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 1)
- DTC P2196-00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 1)
- DTC P219C-00: Cylinder 1 Air-Fuel Ratio Imbalance
- DTC P219D-00: Cylinder 2 Air-Fuel Ratio Imbalance
- DTC P219E-00: Cylinder 3 Air-Fuel Ratio Imbalance
- DTC P219F-00: Cylinder 4 Air-Fuel Ratio Imbalance
- DTC P2227-00: Barometric Pressure Circuit Range/Performance
- DTC P2228-00: Barometric Pressure Circuit Low Input
- DTC P2229-00: Barometric Pressure Circuit High Input
- DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1)
- DTC P2243-00: O2 Sensor Reference Voltage Circuit/Open (Bank 1 Sensor 1)
- DTC P2251-00: O2 Sensor Reference Ground Circuit/Open (Bank 1 Sensor 1)
- DTC P2270-00: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2)
- DTC P2271-00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2)
- DTC P2297-00: O2 Sensor Out of Range During Deceleration - (Bank 1 Sensor 1)
- DTC P2401-00: EVAP System Leak Detection Pump Control Circuit Low
- DTC P2402-00: EVAP System Leak Detection Pump Control Circuit High
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.