Mazda 6 Service Manual: No.7 slow return to idle

No.6 cranks normally but will not start

No.8 engine runs rough/rolling idle

Other materials:

Mazda 6 Service Manual: Air intake actuator inspection
1. Connect battery positive voltage to terminal D or F and ground to terminal F or D of the air intake actuator. 2. Verify that the air intake actuator operates as shown below. If not as specified, replace the air intake actuator. ...

Mazda 6 Service Manual: Selector cable adjustment
1. Remove the center console. 2. Shift the selector lever to P position. 3. Unlock the lock piece of the selector cable (selector lever side) in the order shown in the figure. 4. Verify that the manual shaft is in P position. 5. Lock the lock piece of the selector cable (selector lever side) ...