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: How to use USB mode
This unit does not support a USB 3.0 device. In addition, other devices may not be supported depending on the model or OS version. USB devices formatted to FAT32 are supported (USB devices formatted to other formats such as NTFS are not supported). Playback 1. Select the icon on the home ...

Mazda 6 Service Manual: Cruise Control Switch
  Cruise Main Indication (White)/ Cruise Set Indication (Green)     The indication has two colors. Cruise Main Indication (White)   The indication turns on (white) when the cruise control system is activated. Cruise Set Indication (Green) The indication turns on (gr ...