isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Fuel Pressure Regulator > < Fuel Pressure Regulator Vacuum Switching Valve <--> [Fuel Pressure Control Solenoid]|Specifications|Page 1665
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Fuel Pressure Regulator Vacuum Switching Valve: Testing and Inspection

Fuel Pressure / Canister VSV Connector

Fuel Pressure / Canister VSV Connector Pin ID

VSV CHECK

-

Disconnect VSV connector.

-

Using an ohm meter, check resistance between "LgY" and "BW" wires. If resistance is not approximately 30 ohms, replace VSV.

Canister And Pressure Regulator Vacuum Switching Valve

-

Confirm that air passes between "throttle valve" and "pressure regulator" fittings

-

Apply battery voltage to VSV wires "LgY" and "BW". Solenoid should click and air should pass between "common chamber" and "pressure
regulator" fittings.

-

Replace VSV if faulty.

Fuel Pressure Regulator > < Fuel Pressure Regulator Vacuum Switching Valve <--> [Fuel Pressure Control Solenoid]|Specifications|Page 1665