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: Dtc c1955, c1956
Caution When attaching the tester lead to the DSC HU/CM connector the SST (49 G066 004) must be used. Diagnostic procedure ...

Mazda 6 Service Manual: Refrigerant system service procedures
GAS CHARGING SET INSTALLATION 1. Fully close the valves of the SST (49 C061 001). 2. Connect the SSTs (49 C061 002, 49 C061 003) to the high- and low-pressure side joints of the SST (49 C061 001). 3. Connect the SSTs (49 C061 006A, 49 C061 007) to the ends of the SSTs (49 C061 002, 49 C061 00 ...