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: Control valve body removal
On-Vehicle Removal Warning Using compressed air can cause dirt and other particles to fly out, causing injury to the eyes. Wear protective eyes whenever using compressed air. Caution Clean the transaxle exterior throughout with a steam cleaner or cleaning solvents before removal ...

Mazda 6 Service Manual: Fuel tank removal/installation
Warning Repairing a fuel tank that has not been properly steam cleaned can be dangerous. Explosion or ire may cause death or serious injury. Always properly steam clean a fuel tank before repairing it. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injur ...