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 c1148, c1158, c1168, c1178, c1233, c1234, c1235, c1236
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 ...

Mazda 6 Service Manual: Sunvisors
When you need a sunvisor, lower it for use in front or swing it to the side. Side Extension Sunvisors (Some models) The visor extender extends the sunvisor's range of sun shading. To use, pull it out. CAUTION When moving the sunvisor, retract the visor extender to its original position. O ...