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: Outside Temperature Display
When the ignition is switched ON, the outside temperature is displayed. NOTE Under the following conditions, the outside temperature display may differ from the actual outside temperature depending on the surroundings and vehicle conditions: Significantly cold or hot temperatures. Sudden ...

Mazda 6 Service Manual: Audio Set
NOTE The explanation of functions described in this manual may differ from the actual operation, and the shapes of screens and buttons and the letters and characters displayed may also differ from the actual appearance. Additionally, depending on future software updates, the content may succes ...