Mazda 6 Service Manual: No.20 fuel odor (in engine compartment)

No.19 exhaust smoke

No.21 engine noise

Other materials:

Mazda 6 Service Manual: Variable air duct (vad) shutter valve inspection (l3)
1. Remove the air cleaner case. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 2. Disconnect the vacuum hose from the VAD shutter valve actuator. 3. Connect a vacuum pump to the VAD shutter valve actuator. 4. Apply vacuum and verify that the rod moves. If the rod dose not move, replace the a ...

Mazda 6 Service Manual: Engine control system operation inspection
Main Relay Operation Inspection Verify that the main relay clicks when the ignition switch is turned to ON position and off. If there is no operation sound, inspect the following. - Main relay (See RELAY INSPECTION.) - Harness and connector between ignition switch and main relay termi ...