Corolla Sedan 4-Door L4-1587cc 1.6L DOHC MFI (1997)
Vacuum Switching Valve (VSV) for EGR: Testing and Inspection
VSV INSPECTION
1. REMOVE VSV
2. INSPECT VSV
A. Inspect VSV for open circuit
Using an ohmmeter, check that there is continue between the terminals.
Resistance: 37 - 44 Ohms at 20°C (68°F)
If there is no continuity, replace the VSV.
B. Inspect VSV for ground
Using an ohmmeter. check that there is no continuity between each terminal and the body.
If there is continuity, replace the VSV.
C. Inspect VSV operation
(a) Check that air flows from port E to the filter.
