Troubleshooting Hints
WARNING: This page is about a different car, the 2004 Hyundai Santa Fe and 2003 Hyundai Santa Fe. However, it is still accessible from the selected car via links, so may be relevant.
- If the engine is hard to start when hot, check for fuel pressure and injector leaks.
- If the injectors do not operate when the engine is cranked, then check the followings:
- Defective power supply circuit to the PCM, faulty ground circuit
- Defective control relay
- Defective crankshaft position (CKP) sensor or camshaft position (CMP) sensor
- If there is any cylinder whose idle state remains unchanged when the fuel injectors are cut one after another during idling, check for the following items about that cylinder.
- Injector and harness
- Ignition 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 ignition plug, ignition coil, compression pressure, etc.)
- Loose EGR valve seating