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: Installation of radio system
If a radio system is installed improperly or if a high-powered type is used, the CIS and other systems may be affected. When the vehicle is to be equipped with a radio, observe the following precautions: Install the antenna at the farthest point from control modules. Install the antenna fe ...

Mazda 6 Service Manual: Power window motor removal/installation
1. Disconnect the negative battery cable. 2. Remove the front door trim or rear door trim. 3. Disconnect the power window motor connector. 4. Remove the bolts. 5. Remove the power window motor from the power window regulator drum. 6. Install in the reverse order of removal. Note When ins ...