MR2 L4-132 2164cc 2.2L DOHC (5S-FE) (1993)
Vacuum Switching Valve (VSV) for EGR: Testing and Inspection
Fig. 60 Testing VSV For Short Circuit
Fig. 59 Testing VSV For Open Circuit
1. Disconnect electrical connector and vacuum hoses from the vacuum switching valve. Remove the VSV from the engine.
2. Using an ohmmeter, check for continuity between the terminals and the housing body. Fig. 60
3. If there is any continuity, replace the VSV.
4. Using an ohmmeter, check the resistance between the terminals, Fig. 59. The resistance should be 33 - 39 Ohms at 68°F ambient temperature.
5. If not as specified, replace the VSV.
Fig. 61 Testing VSV Operation