isuzu Workshop Repair Guides

Isuzu Rodeo 4WD L4-2559cc 26L SOHC Workshop Service and Repair Manuals

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EGR Duty Solenoid <--> [EGR Electronic Vacuum Regulator Solenoid] > < EGR Vacuum Switching Valve <--> [EGR Control Solenoid]|Specifications|Page 1535

Rodeo (4WD) L4-2559cc 26L SOHC (4ZE1) (1991) - EGR Vacuum Switching Valve

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EGR Vacuum Switching Valve: Testing and Inspection

EGR Solenoid

1.

Disconnect electrical connector and apply battery voltage to VSV electrical terminals.  Air should flow freely between "Y" and "Z" ports. Air
should not flow between "X" and "Y" ports.

2.

Disconnect battery voltage.  Air should flow freely between "X" and Y" ports. Air should not flow between "Y" and "Z" ports.

3.

Replace VSV if it fails this test.

EGR Duty Solenoid <--> [EGR Electronic Vacuum Regulator Solenoid] > < EGR Vacuum Switching Valve <--> [EGR Control Solenoid]|Specifications|Page 1535