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 MANUALSHYUNDAI2022IONIQ PLUG-IN HYBRID SELREPAIR AND DIAGNOSISENGINE MECHANICALFUEL SYSTEMENGINE CONTROL/FUEL SYSTEM - GENERAL INFORMATION (PHEV)
2022 Hyundai Ioniq Plug-In Hybrid SEL
Engine Control/Fuel System - General Information (PHEV)
2022 Hyundai Ioniq Plug-In Hybrid SELSECTION Engine Control/Fuel System - General Information (PHEV)
- General Safety Information & Caution
- Safety Precaution
- Precautions to take before servicing high voltage system
- Personal Protective Equipment
- Precautions to take when handling power cable
- Precautions to take when handling (high voltage battery)
- Precautions in case of fire on (high voltage battery) system
- Precautions in case of (high voltage battery) gas or electrolyte leakage
- Precautions when handling the vehicle after an accident
- Preparations when servicing the accident vehicle
- Precautions in case HEV is left unattended for a lengthy period
- Hybrid Vehicle Refrigerant Recovery/(Charging Precautions)
- Safety Precaution
- High Voltage Shut-Off Procedures
- Specifications
- Fuel Delivery System
- Sensors
- Manifold Absolute Pressure Sensor (MAPS)
- Intake Air Temperature Sensor (IATS)
- Mass Air Flow Sensor (MAFS)
- Engine Coolant Temperature Sensor (ECTS)
- Throttle Position Sensor (TPS) [integrated into ETC module]
- Crankshaft Position Sensor (CKPS)
- Camshaft Position Sensor (CMPS)
- Knock Sensor (KS)
- Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
- Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
- Rail Pressure Sensor (RPS)
- Accelerator Position Sensor (APS)
- Fuel Tank Pressure Sensor (FTPS)
- Evaporation Leak Check Module (ELCM) Pressure Sensor
- Actuators
- Service Standard
- Tightening Torques
- Special Service Tools
- Troubleshooting
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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.