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.
2015 Kia Optima LimitedFACTORY OEM SERVICE PROCEDURE
Engine Control System Diagnosis (1 Of 3) - 2.0L (Except HEV)
- DTC Index
- DTC P0011: 'A' Camshaft Position - Timing Over - Advanced Or System Performance (Bank 1)
- DTC P0014: 'B' Camshaft Position - Timing Over - Advanced Or System Performance (Bank 1)
- DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1/Sensor A)
- DTC P0017: Crankshaft Position - Camshaft Position Correlation (Bank 1/Sensor B)
- DTC P0030: HO2S Heater Control Circuit (Bank 1/Sensor 1)
- DTC P0031: HO2S Heater Control Circuit Low (Bank 1/Sensor 1)
- DTC P0032: HO2S Heater Control Circuit High (Bank 1/Sensor 1)
- DTC P0034: Turbocharger/Supercharger Bypass Valve Control Circuit Low
- DTC P0035: Turbocharger/Supercharger Bypass Valve Control Circuit High
- DTC P0036: HO2S Heater Control Circuit (Bank 1/Sensor 2)
- DTC P0037: HO2S Heater Control Circuit - Low (Bank 1/Sensor 2)
- DTC P0038: HO2S Heater Control Circuit - High (Bank 1/Sensor 2)
- DTC P0049: Turbocharger/Supercharger Turbine Overspeed
- DTC P004E: Turbocharger/Supercharger Boost Control 'A' Circuit Intermittent/Erratic
- DTC P006E: Turbocharger/Supercharger Boost Control 'A' Supply Voltage Circuit - Low
- DTC P0071: Ambient Air Temperature Circuit Range/Performance
- DTC P0076: Intake Valve Control Solenoid Circuit - Low (Bank 1)
- DTC P0077: Intake Valve Control Solenoid Circuit - High (Bank 1)
- DTC P0079: Exhaust Valve Control Solenoid Circuit - Low (Bank 1)
- DTC P0080: Exhaust Valve Control Solenoid Circuit - High (Bank 1)
- DTC P0087: Fuel Rail/System Pressure - Too Low
- DTC P0088: Fuel Rail/System Pressure - Too High
- DTC P0089: Fuel Pressure Regulator 1 Performance
- DTC P0090: Fuel Pressure Regulator 1 Control Circuit/Open
- DTC P0091: Fuel Pressure Regulator 1 Control Circuit - Low
- DTC P0092: Fuel Pressure Regulator 1 Control Circuit - High
- DTC P0106: Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance
- DTC P0107: Manifold Absolute Pressure/Barometric Pressure Circuit - Low Input
- DTC P0108: Manifold Absolute Pressure/Barometric Pressure Circuit - High Input
- DTC P0111: Intake Air Temperature Sensor 1 Circuit Range/Performance
- DTC P0112: Intake Air Temperature Sensor 1 Circuit - Low Input
- DTC P0113: Intake Air Temperature Sensor 1 Circuit - High Input
- DTC P0116: Engine Coolant Temperature Circuit Range/Performance
- DTC P0117: Engine Coolant Temperature Circuit - Low Input
- DTC P0118: Engine Coolant Temperature Circuit - High Input
- DTC P0119: Engine Coolant Temperature Circuit Intermittent
- DTC P011B: Engine Coolant Temperature/Intake Air Temperature Correlation
- DTC P0121: Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance
- DTC P0122: Throttle/Pedal Position Sensor/Switch 'A' Circuit - Low Input
- DTC P0123: Throttle/Pedal Position Sensor/Switch 'A' Circuit - High Input
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
- DTC P0131: O2 Sensor Circuit - Low Voltage (Bank 1/Sensor 1)
- DTC P0132: O2 Sensor Circuit - High Voltage (Bank 1/Sensor 1)
- DTC P0133: O2 Sensor Circuit Slow Response (Bank 1/Sensor 1)
- DTC P0135: O2 Sensor Heater Circuit (Bank 1/Sensor 1)
- DTC P0136: O2 Sensor Circuit (Bank 1/Sensor 2)
- DTC P0137: O2 Sensor Circuit - Low Voltage (Bank 1/Sensor 2)
- DTC P0138: O2 Sensor Circuit - High Voltage (Bank 1/Sensor 2)
- DTC P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2)
- DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1/Sensor 2)
- DTC P0170: Fuel Trim (Bank 1)
- DTC P0171: System Too Lean (Bank 1)
- DTC P0172: System Too Rich (Bank 1)
- DTC P0191: Fuel Rail Pressure Sensor Circuit Range/Performance
- DTC P0192: Fuel Rail Pressure Sensor Circuit - Low Input
- DTC P0193: Fuel Rail Pressure Sensor Circuit - High Input
- DTC P0196: Engine Oil Temperature Sensor - Range/Performance
- DTC P0197: Engine Oil Temperature Sensor Low Input
- DTC P0198: Engine Oil Temperature Sensor High Input
- DTC P0200: Injector Circuit/Open
- DTC P0201: Injector Circuit/Open - Cylinder 1
- DTC P0202: Injector Circuit/Open - Cylinder 2
- DTC P0203: Injector Circuit/Open - Cylinder 3
- DTC P0204: Injector Circuit/Open - Cylinder 4
- DTC P0221: Throttle/Pedal Position Sensor/Switch 'B' Circuit Range/Performance
- DTC P0222: Throttle/Pedal Position Sensor/Switch 'B' Circuit - Low Input
- DTC P0223: Throttle/Pedal Position Sensor/Switch 'B' Circuit - High Input
- DTC P0230: Fuel Pump Primary Circuit
- DTC P0234: Turbocharger/Supercharger Over Boost Condition
- DTC P0236: Turbocharger/Supercharger Boost Sensor 'A' Circuit Range/Perform
- DTC P0237: Turbocharger/Supercharger Boost Sensor 'A' Circuit - Low
- DTC P0238: Turbocharger/Supercharger Boost Sensor 'A' Circuit - High
- DTC P0244: Turbocharger/Supercharger Wastegate Sol. 'A' Range/Performance
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.
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