How do you test a Toyota VSV valve?
Before you purchase the VSV, there is a way to test yours if you can get your hands on it. Supply power to the VSV, such as using a 9V battery, + to one of the electrical connector, and – to the other. You should hear a click sound on a working VSV.
What does VSV stand for Toyota?
vacuum switching valve
The vacuum switching valve (VSV) which controls the vacuum supply to the actuator is normally closed and passes vacuum to the actuator when it is energized by the ECU. By energizing the VSV vacuum is passed to the actuator, closing the air control valve. This effectively lengthens the intake manifold run.
Where is the VSV valve on a Toyota?
Here I show how to test the VSV (Vacuum Switching Valve) which resides at the charcoal canister. Toyota calls it the VSV For Pressure Switching Valve. This is one of the diagnostic steps in solving the check engine light trouble code P0446 “Evaporative Emission Control (EVAP) system vent control circuit malfunction”.
Where is the vacuum switching valve on a Toyota?
The Vacuum Switching Valve (VSV) is typically located on the engine (often under the intake manifold) or in the engine compartment, controlling a fixed air bleed into the intake manifold. The valve is a normally closed (N/Q design which is opened when current is passed through the solenoid windings.
What does Toyota call the pressure switching valve?
Toyota calls it the VSV For Pressure Switching Valve. This is one of the diagnostic steps in solving the check engine light trouble code P0446 “Evaporative Emission Control (EVAP) system vent control circuit malfunction”. I removed the VSV to make it easier to test and take photos/video.
How to test vacuum switching on a Toyota Corolla?
This is from my 2004 Corolla LE. A tube that fits around the port that is closest to the connector. That is port ‘E’. The other port is port ‘F’ When voltage is applied to the two terminals on the VSV, you should hear a clicking sound. With the tube in your mouth, blow when voltage is not applied. The air should not flow out of port F.