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: Active Driving Display (Some models)
WARNING Always adjust the display brightness and position with the vehicle stopped: Adjusting the display brightness and position while driving the vehicle is dangerous as doing so could distract your attention from the road ahead and lead to an accident. CAUTION Do not try to adjust the ...

Mazda 6 Service Manual: Camshaft position (cmp) sensor inspection
Caution When foreign material such as an iron chip is on the CMP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CMP sensor when replacing. Note Perform the follow ...