1. Insufficient fuel supply to injector

1)

Fuel pump does not operate.

Defective terminal contact

Inspect connections, especially ground, and tighten it securely.

Trouble in electromagnetic or electronic circuit parts

Replace the fuel pump.

2)

Decline of fuel pump function

Replace the fuel pump.

3)

Clogging of fuel filter

Replace the fuel filter.

4)

Clogged or bent fuel pipe or hose

Clean, correct or replace fuel pipes or hoses.

5)

Air is entering the fuel system.

Inspect or retighten each connection part.

6)

Clogged or bent air breather tube or pipe.

Clean, correct or replace the air breather tube or pipe.

7)

Damaged diaphragm of pressure regulator

Replace.

2. Fuel leakage, fuel spraying out

1)

Loose joints of the fuel pipe

Retighten.

2)

Cracked fuel pipe, hose and fuel tank

Replace.

3)

Defective welding part on the fuel tank

Replace.

4)

Defective drain gasket of the fuel tank

Replace.

5)

Clogged or bent air breather tube or air vent tube

Clean, correct or replace the air breather tube or air vent tube.

3. Gasoline odor inside the compartment

1)

Loose joints at air breather tube, air vent tube and fuel filler pipe

Retighten.

2)

Fuel filler cap function impaired

Correct or replace the gasket.

3)

Problem with the fuel pump or circuit

Replace.

4. Defective fuel meter indicator

1)

Defective operation of fuel level sensor

Replace.

2)

Defective operation of fuel meter

Replace.

5. Noise

1)

Large operation noise or vibration of fuel pump

Replace.