Removal and installation of the valve
Check on the engine
1. Disconnect the air filter hose from the throttle body.
2. Verify valve operation by measuring RPM while closing valve inlet to throttle body.
- When the coolant temperature is below 80°C, the engine speed should decrease sharply when the hole is closed.
- When the engine is warm, the engine speed does not decrease by more than 50 rpm.
Otherwise, replace the secondary air valve.
3. Connect the air filter hose.