2004 Hyundai Santro Repair Question
Rough idle and black smoke
Check compression.Check ignition timing. Check injector pulsing.
plz give me detail of this checking procedures
Running too rich
1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
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