Mazda 6 Service Manual: No.6 cranks normally but will not start

No.5 engine stalls-after start/at idle

No.7 slow return to idle

Other materials:

Mazda 6 Service Manual: Dual proportioning valve replacement (without abs)
1. Remove in the order indicated in the table. 2. Install in the reverse order of removal. Dual Proportioning Valve Installation Note Install the dual proportioning valve so that the R mark faces the left side of the vehicle. ...

Mazda 6 Service Manual: A/c compressor removal/installation
1. Disconnect the negative battery cable. 2. Discharge the refrigerant from the system. (See RECOVERY.) (See CHARGING.) 3. Remove the right side splash shield and mudguard (L.H.D. only). 4. Loosen the drive belt and remove it. Caution If moisture or foreign material enters the refrigeration ...