P0204

P0204 (Injection cylinder 4 circuit malfunction)

Accent & Elantra


Schematic






Test Procedures














Resistance Measurement Between Terminals
- Disconnect the connector at the injector.
- Measure the resistance between terminals.

Standard value 15.9 ±0.35 ohms at 20°C (68°F)

- If the resistance is not within specification, replace the injector.

TROUBLESHOOTING HINTS
1. If the engine is hard to start when hot, check for fuel pressure and injector leaks.
2. If the injector does not operate when the engine is cranked, then check the following:
- Faulty power supply circuit to the ECM and faulty ground circuit
- Faulty MFI control relay
- Faulty crankshaft position sensor and camshaft position sensor
3. If there is any cylinder whose idle state remains unchanged when the fuel injection of injectors is cut one after another during idling, check for the following items about such cylinder.
- Injector and harness
- Ignition plug and high tension cable
- Compression pressure
4. 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 ignition plug, ignition coil, compression pressure and etc.)
5. The MIL is on or the DTC is displayed on the SCAN TOOL when the injector itself is faulty.