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: Discharge headlight service warnings
Discharge headlight bulb service warnings To prevent electrical shock when replacing the discharge headlight bulb, dry hands thoroughly, and carry out work in an area out of rain. When the light switch is on, approx. 25,000 V of high voltage passes through the discharge headlight bulb so ...

Mazda 6 Service Manual: Dtc c1145, c1155, c1165, c1175
Caution When attaching the tester lead to the DSC HU/CM connector the SST (49 G066 004) must be used. Diagnostic procedure ...