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: Recommendations for Shifting
Upshifting For normal acceleration, Mazda recommends these shift points: For cruising, Mazda recommends these shift points: Downshifting When you must slow down in heavy traffic or on a steep upgrade, downshift before the engine starts to overwork. This reduces the chance of stalling and ...

Mazda 6 Service Manual: Variable valve timing actuator inspection
L3 Caution Variable valve timing actuator can not be disassembled it is a precision unit. 1. Disconnect the negative battery cable. 2. Remove the plug hole plate. 3. Remove the high-tension lead. 4. Remove the oil control valve connector. 5. Remove the ventilation hose. 6. Remove the ...