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: Trunk Lid
WARNING Never allow a person to ride in the trunk: Allowing a person to ride in the trunk is dangerous. The person in the trunk could be seriously injured or killed during sudden braking or a collision. Do not drive with the trunk lid open: Exhaust gas in the cabin of a vehicle is dangerous. ...

Mazda 6 Service Manual: Seat Belt Maintenance
1. Clean the soiled area by lightly dabbing it with a soft cloth soaked in a mild detergent (approx. 5%) diluted with water. 2. Wipe off the remaining detergent using a cloth soaked in clean water and wrung out well. 3. Before retracting seat belts which have been pulled out for cleaning, dry ...