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 bag module and pre-tensioner seat belt disposal procedures
Warning Before scrapping a vehicle with a live (undeployed) air bag module and pre-tensioner seat belt, deploy the air bag module and pre-tensioner seat belt. Never dispose of a live (undeployed) air bag module and pre-tensioner seat belt. The air bag module and the pre-tensioner seat ...

Mazda 6 Service Manual: Dtc b1318
Caution When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness connector, the SST (49 G066 001) must be used. (See ABS (ABS/TCS) HU/CM INSPECTION.) Diagnostic procedure ...