FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Component Inspection

















VACUUM CUT VALVE BYPASS VALVE
Check air passage continuity.

With CONSULT
Perform "VC/V BYPASS/V" in "ACTIVE TEST" mode.

Without CONSULT
If NG or operation takes more than 1 second, replace vacuum cut valve bypass valve.

VACUUM CUT VALVE

Check vacuum cut valve as follows:
1. Plug port C and D with fingers.
2. Apply vacuum to port A and check that there is no suction from port B.
3. Apply vacuum to port B and check that there is suction from port A.
4. Blow air in port B and check that there is a resistance to flow out of port A.
5. Open port C and D.
6. Blow air in port A check that air flows freely out of port C.
7. Blow air in port B check that air flows freely out of port D.