Mazda 6 Service Manual: No.4 hard to start/long crank/erratic start/erratic crank

No.3 will not crank

No.5 engine stalls-after start/at idle

Other materials:

Mazda 6 Service Manual: System Operation
Make sure that the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF indicator light in the instrument cluster is turned off. When the Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) OFF indicator light is turned on, press the switch and make ...

Mazda 6 Service Manual: Mass air flow (maf) sensor inspection
Voltage Inspection Note Perform the following inspection only when directed. 1. Visually inspect for the following on the MAF sensor. Damage Cracks Terminal bends Terminal rust - If any of the above are found, replace the MAF sensor. - If the MAF PID value is out of specifi ...