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: Camera and Sensors
Forward Sensing Camera (FSC) The Forward Sensing Camera (FSC) detects lane indications and recognizes headlights, taillights and city lights during nighttime driving. In addition, it also detects the vehicle ahead, pedestrians, or obstructions. The following systems also use the Forward Sensi ...

Mazda 6 Service Manual: Dynamometer
When inspecting and servicing the power train on the dynamometer or speed meter tester, pay attention to the following: - Place a fan, preferably a vehicle-speed proportional type, in front of the vehicle. - Make sure the vehicle is in a facility with an exhaust gas ventilation ...