9263933

System Inspection

■ Check the fuel filter for blockage

Remove the fuel pump and check filter debris and clogging of the fuel supply line.

■ Check the fuel level

If you run out of fuel significantly on ramp, it may be a factor of degradation of the fuel pressure.

■ Check low-pressure fuel supply line leakage and blockage.

Low-pressure fuel supply line damage and blockage can be a factor of the fuel pressure drop.

■ Check Fuel Pressure Regulator

- Check Fuel Pressure Regulator performance by measuring voltage and current.

Back probe and measure voltage by using and connecting channel A (+) voltage probe to High side and channel A (-) voltage prove to Low side.

Measure operation current by using Low Current Sensor Module.

Fig.1) Engine Idle after Warm Up

Fig.2) Approx. 2000rpm

Are all listed items normal?

	▶ Go to "Verification of Vehicle Repair" procedure.
	▶ Recheck the listed items from this troubleshooting guide steps, and replace or repair as necessary and then go to "Verification of Vehicle Repair" procedure.