Intake Manifold Side

WARNING: This page is about a different variant/trim than selected.

Verify that there is airflow through port B when pressure is applied from port A.
- If there is no airflow, replace the check valve. (See CHECK VALVE (EMISSION SYSTEM) REMOVAL/INSTALLATION (VIN Y) .)
Courtesy of MAZDA MOTORS CORP.
Verify that there is no airflow through port A when pressure is applied from port B.
- If there is airflow, replace the check valve. (See CHECK VALVE (EMISSION SYSTEM) REMOVAL/INSTALLATION (VIN Y) .)