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 MANUALSHYUNDAI2003XG350 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 13 (FUEL SYSTEM)
2003 Hyundai XG350 Base
Section 13 (Fuel System)
2003 Hyundai XG350 BaseSECTION Section 13 (Fuel System)
WARNING: This page is about a different car, the 2004 Hyundai XG350. However, it is still accessible from the selected car via links, so may be relevant.
- General
- Trouble Shooting
- MULTIPORT Fuel Injection (MFI)
- General Information
- Fuel Injection Control
- Idle Speed Control
- Ignition Timing Control
- Other Control Functions
- Diagnostic Test Mode
- How To Cope With Intermittent Malfunctions
- To Cope With Intermittent Malfunction:
- Simulation Tests
- Service Points In Inspecting A Blown Fuse
- Inspecting The MFI System
- On-Board Diagnostics
- Malfunction Indicator Light (Mil)
- Inspecting The Malfunction Indicator Lamp (Mil)
- Self-Diagnosis
- Checking Procedure (Self-Diagnosis)
- Inspection Procedure (Using Generic Scan Tool)
- MFI Control System
- Trouble Shooting
- Location Of MFI Components
- Engine Coolant Temperature (ECT) Sensor
- Intake Air Temperature (IAT) Sensor
- Throttle Position (TP) Sensor
- Electric Throttle System
- Heated Oxygen Sensor (Ho2S)
- Camshaft Position Sensor
- Crankshaft Position Sensor
- Injector
- Evaporative Emission Canister Purge Solenoid Valve
- Knock Sensor (KS)
- Power Steering Pressure (PSP) Switch
- Engine Control Module (ECM) Control Relay
- Ignition Coil
- Exhaust Gas RECIRCULATION (EGR) Solenoid Valve
- Canister Close Valve
- Fuel Delivery System
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.