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.
2004 Hyundai Accent BaseFACTORY OEM SERVICE PROCEDURE
Troubleshooting Hints
- If the engine is difficult to start when it is hot, check low for fuel pressure and injector leaks.
- If the injector does not operate when the engine is cranked, then check the following:
- Faulty power supply circuit to the ECM or faulty ground circuit.
- Faulty MFI control relay.
- Faulty crankshaft position sensor or camshaft position sensor.
- If engine idle remains unchanged when fuel injection to the cylinders is cut one after another, check for the following items about such cylinder:
- Injector and harness.
- Spark plug and high tension cable.
- Compression pressure.
- If the injection system is OK but the injector drive time is out of specification, check for the following items:
- Poor combustion in the cylinder (faulty spark plug, ignition coil, compression pressure, etc.)
- The MIL is on or the DTC is displayed on the HI-SCAN under the following condition.
- When the injector itself is faulty.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.