Mazda 6 Service Manual: No.7 slow return to idle

No.6 cranks normally but will not start

No.8 engine runs rough/rolling idle

Other materials:

Mazda 6 Service Manual: Traffic Sign Display Indication
The following traffic signs are displayed on the active driving display. Speed limit signs Do not enter signs Stop signs The above indications are some examples. NOTE Speed limit signs When the vehicle speed is about 1 km/h (0.6 mph) or faster, the speed limit sign is displayed wh ...

Mazda 6 Service Manual: Starting a Flooded Engine
If the engine fails to start, it may be flooded (excessive fuel in the engine). Follow this procedure: 1. If the engine does not start within five seconds on the first try, wait ten seconds and try again. 2. Make sure the parking brake is on. 3. Depress the accelerator all the way and hold it ...