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: Indication on Display
The Distance Recognition Support System (DRSS) operation status is indicated in the active driving display or multi-information display. Regarding malfunctions, check the vehicle conditions or have it inspected by an Authorized Mazda Dealer according to the content of the displayed message. R ...

Mazda 6 Service Manual: Oil pump
OIL PUMP REMOVAL/INSTALLATION 1. Disconnect the negative battery cable. 2. Drain the engine oil. (See ENGINE OIL REPLACEMENT.) 3. Remove the oil pan. (See OIL PAN REMOVAL/INSTALLATION.) 4. Remove in the order indicated in the table. 5. Install in the reverse order of removal. 6. Inspect the en ...