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: To Decrease Cruising Speed
Press the SET/ switch and hold it. The vehicle will gradually slow. Release the switch at the desired speed. Press the SET/ switch and release it immediately to adjust the preset speed. Multiple operations will decrease the preset speed according to the number of times it is operated. Decr ...

Mazda 6 Service Manual: Expansion valve removal/installation
1. Disconnect the negative battery cable. 2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.) Caution If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug open fitt ...