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: Steering gear and linkage inspection
Rack Inspection 1. Inspect the rack for cracking, damage, and tooth wear. Replace it as necessary. 2. Measure the runout of the rack. Runout Near point A: 0.15 mm {0.006 in} max. Near point B: 0.20 mm {0.008 in} max. 3. If not within the specification, replace the rack. Tie-rod End ...

Mazda 6 Service Manual: Air intake actuator inspection
1. Connect battery positive voltage to terminal D or F and ground to terminal F or D of the air intake actuator. 2. Verify that the air intake actuator operates as shown below. If not as specified, replace the air intake actuator. ...