Fuel Pressure Control Solenoid: Testing and Inspection

INSPECTION OF HIGH TEMPERATURE LINE PRESSURE UP SYSTEM







1. CHECK VACUUM CIRCUIT CONTINUITY IN VSV BY BLOWING AIR INTO PIPE.






a. Connect the Vacuum Switching Valve (VSV) terminals to the battery terminals.
b. Blow into pipe E and check that air comes out of pipe G.






c. Disconnect the battery.
d. Blow into pipe E and check that air comes out of air filter.

It a problem is found, repair or replace the VSV.






2. CHECK FOR SHORT CIRCUIT.
Using an ohmmeter, check that there is no continuity between the terminal and the VSV body.

If there is continuity, replace the VSV.






3. CHECK FOR OPEN CIRCUIT.
Using an ohmmeter, measure the resistance between the terminals.

Specified resistance: 30 - 50 ohms at 20°C (68°F)

If resistance is not within specification, replace the VSV.