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: Battery Recharging
NOTE Before performing maintenance or recharging the battery, turn off all accessories and stop the engine. To disconnect the battery, remove the negative cable first. Install it last when connecting the battery. Be sure to remove the caps before recharging the battery.   I ...

Mazda 6 Service Manual: When Trunk Lid Cannot be Opened
If the vehicle battery is dead or there is a malfunction in the electrical system and the trunk lid cannot be opened, perform the following procedure as an emergency measure to open it: 1. Open the cover. 2. Move the lever to the left to fold the seatback. 3. Move the lever to the left to o ...