October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
All Other Models
- Warm engine to normal operating temperature. Stop engine and disconnect air pump-to-air control valve hose at air control valve. Start engine and run at idle speed. Disconnect outlet hose from air control valve. Disconnect vacuum sensing tubes from No. 1 and No. 2 relief valves (No. 1 relief valve only on 626). Air should be discharged at air control valve outlet port.
- On 626 models, reconnect vacuum sensing tube to No. 1 relief valve. On all others, connect No. 1 relief valve directly to inlet manifold vacuum with additional tubing. Air should not be discharged from air control valve outlet port.
- On 626 models, disconnect No. 2 relief valve-to-vacuum pipe hose at vacuum pipe. Disconnect No. 1 relief valve-to-intake manifold hose at air control valve and install "T" fitting. Connect additional tubing between "T" fitting and No. 1 relief valve. Connect No. 2 relief valve-to-vacuum pipe hose to "T" fitting. Air should be discharged at air control valve outlet port. Disconnect and plug vacuum sensing tube from No. 2 relief valve. Air should not be discharged from air control valve outlet port.
Courtesy of MAZDA MOTORS CORP.
- On all other models, connect No. 2 relief valve directly to inlet manifold vacuum with additional tubing (No. 1 relief valve still connected to inlet manifold vacuum). Air should be discharged from air control valve outlet port.
- On all models, if air control valve, No. 1 relief valve or No. 2 relief valve do not respond as outlined, replace air control valve assembly.