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: Dsc on-board diagnosis
On-Board Diagnostic (OBD) Test Description (See ABS (ABS/TCS) ON-BOARD DIAGNOSIS) DTC Table PID/DATA Monitor Table Active Command Modes Table ...

Mazda 6 Service Manual: Combine sensor removal/installation
Caution Be careful and do not allow the combine sensor to fall. If by chance it is subjected to strong impact, replace it. 1. Remove the center console. 2. Remove in the order indicated in the table. 3. Install in the reverse order of removal. 4. After installation, perform the comb ...