Mazda 6 Service Manual: No.12 lack/loss of power-acceleration/cruise

No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges

No.13 knocking/pinging-acceleration/cruise

Other materials:

Mazda 6 Service Manual: Distance Recognition Support System (DRSS) (Some models)
The Distance Recognition Support System (DRSS) measures the distance between your vehicle and a vehicle ahead using a radar sensor (front) while the vehicle speed is about 30 km/h (19 mph) or faster, and if your vehicle approaches a vehicle ahead more closely than what is appropriate for maint ...

Mazda 6 Service Manual: Symptom troubleshooting
Verify the symptoms, and perform troubleshooting according to the appropriate number. Vehicles with ABS/TCS Vehicles with DSC *1 : DSC system contains traction control function, DSC indicator light goes on and off while DSC operates. *2 : DSC indicator light goes on and off while D ...