FUEL INJECTION (FUEL SYSTEMS)(H4DOTC) > Fuel System Trouble in General

Trouble	Possible cause	Corrective action
Insufficient fuel supply to injector	a. Fuel pump does not operate.
	Defective terminal contact	Inspect contact, especially ground, and tighten it securely.
	Trouble in electromagnetic or electronic circuit parts	Replace the faulty parts.
	b. Decline of fuel pump function	Replace the fuel pump.
	c. Clogged fuel filter	Replace the fuel filter. Clean or replace the fuel tank if necessary.
	d. Clogged or bent pipe, hose or tube of fuel line	Clean, correct or replace the pipe, hose or tube of the fuel line.
	e. Air is mixed in the fuel system.	Check the fuel line connections, and repair or replace the defective part.
	f. Damaged diaphragm of pressure regulator	Replace the pressure regulator.
Leakage or run-out of fuel	a. Loose connection in pipe, hose or tube of fuel line	Check the fuel line connections, and repair or replace the defective part.
	b. Cracks in pipe, hose or tube of fuel line	Replace the pipe, hose or tube of the fuel line.
	c. Cracks or defective welded part of fuel tank	Replace the fuel tank.
	d. Clogged or bent pipe, hose or tube of fuel line	Clean, correct or replace the pipe, hose or tube of the fuel line.
Gasoline smell inside of compartment	a. Loose connection in pipe, hose or tube of fuel line	Check the fuel line connections, and repair or replace the defective part.
	b. Defective gasket of fuel saucer or fuel filler pipe assembly	Correct or replace the gasket.
	c. Defective canister	Replace the canister.
Defective fuel gauge	a. Defective operation of fuel level sensor	Replace the fuel level sensor.
Defective fuel gauge	b. Defective operation of combination meter	Replace the combination meter.
Noise	a. Big operation noise or vibration from fuel pump	Replace the fuel pump.

NOTE:

• When the vehicle is left unattended for an extended period of time, water may accumulate in the fuel tank. Fill fuel fully to prevent the problem.

• In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures drop to 0°C (32°F) or less throughout the winter season, use a water removing agent in the fuel system to prevent freezing fuel system and accumulating water.

• When water is accumulated in fuel filter, fill the water removing agent in the fuel tank.

• Before using water removing agent, follow the cautions noted on the bottle.