Mazda 6 Service Manual: No.6 cranks normally but will not start

No.5 engine stalls-after start/at idle

No.7 slow return to idle

Other materials:

Mazda 6 Service Manual: Floor Mat
We recommend the use of Genuine Mazda floor mats. WARNING Make sure the floor mats are hooked on the retention pins to prevent them from bunching up under the foot pedals: Using a floor mat that is not secured is dangerous as it will interfere with the accelerator and brake pedal operation, ...

Mazda 6 Service Manual: Manually Shifting Up
You can shift gears up by operating the selector lever or the steering shift switches (some models). M1 → M2 → M3 → M4 → M5 → M6 Using selector lever To shift up to a higher gear, tap the selector lever back (+) once. Using steering shift switch (some models) To ...