Mazda Millennia has intermittent white smoke and loss of power

SOURCE: smoke problem

Sounds as though you have water in the oil. The white smoke is the steam. Check your oil by taking the dip stick out and if it looks like mayonnaise then your head gasket will need replacing. Once the head is off the engine block, there is no way safely to say how much work will be needed on the cylinder head. If the head gasket has blown then you will need to fit a new timing belt also.

SOURCE: 1999 Ford F 350 7.3 blowing white smoke

Check the EGR and the fuel pressure regulator.These are very common culprits.

SOURCE: renault traffic loss of power and white smoke

if its diesel, attach a tube to pipe leading into primer pump.[black bulb ]. attach a pump . and tube from outlet of pump to container pump out diesel till empty. if petrol locate pipe feed from tank and connect to it same as earlier

SOURCE: power loss and white smoke from a Mazda B 2200 4

Remember that white smoke is water in the cylinders,you may have a blown head gasket,and as for the plug firing diagram,need you to explain beter.

SOURCE: 2004 Mazda 6s that won't start white smoke comes

White smoke means lean condition, make sure the car is getting fuel which can be power source to the fuel pump or the pump itself..