1998 mazda 626 stalls

2012 really ? what country? we have no 626 year USA that year
or do you mean the Mazda 6"? 2.5 or 3.7L engine?
cut out means what, be more exact in what that means
ALL DC power and lamps and engine and radio die , on the fly.?
or just engine, all lamps good.
lost power means engine power or DC power or both.
engine stalls. are complex over 50 causes in engine or EFI.and more.
can the stall (stall means engine goes to 0rpm) but can you prevent the stall with a fast right foot?????
does the engine restart easy, at stall? or not.
is the starter motor always working(cranking), after the stall?
stalls may only happen on hot or cold engine or both.
bad spark is #1 cause of stalls. (and lots more ) try new spark plugs.>?
EGR stuck open
IAC stuck closed(idle valve gunked up)
battery died, or alternator dead or intermittent.(or going off line for battery gross shorts or opens)

mazda 6
Mazda since 2002, replacing the long-produced Capella/626.
and
The 626 replaced the 616/618 and RX-2 in 1979 and was sold through 2002, when the new Mazda6 took over as Mazda's large family car. 4,345,279 of the 626 and Ford Telstar models were sold worldwide.

post real car model names and real engine size first and even country the car was delivered to first or the VIN that tells me all that.

ENGINE STALL WHILE DRIVING COULD BE STOPPED UP FUEL FILTER OR FAULTY FUEL PUMP.IDLE SPEED TOO LOW.OR IGNITION COIL HAS A LOOSE ELECTRICAL CONNECTION.FAULTY IGNITION MODULE.BAD PLUGS AND WIRES. I WOULD DO A LITTLE TUNE UP.CHANGE FUEL FILTER AND AIR FILTER.IF SPARK PLUGS AND WIRES HAS OVER 30000 MILES ON THEM I WOULD CHANGE THEM.ALSO FUEL FILTER IF OVER 30000 MILES.CHANGE IT CLEAN FUEL INJECTORS. TO TROUBLE SHOOT CAR I WILL DO A LITTLE TUNE UP FIRST TO MAKE EVERYTHING TOP NOTCH ON THE ENGINE BEFORE I GO TO NEXT LEVEL.BUYING NEW PARTS DONT NEED.GET VECHICLE SCANNED WITH A SCANNER. THAT WILL ALSO PIN POINT PROBLEM QUICKLY.BUT DO THE LITTLE TUNE UP FIRST IF EVERYTHING PAST 30000 MILES MARK.SCAN VECHICLE FOR FAULTY IDLE SPEED CODES OR FAULTY IGNITION MODULE CODE THEY WILL COST MORE MONEY TO FIX.PARTS HIGH.

Go to online store reliable they have repair manuals I am sure you will get the solution. Here's the link
MAZDA 626 SERVICE REPAIR MANUAL 1997 1998 1999 2000 2001 2002 DOWNLOAD

check connection to cam sensor. sometimes corrosion will cause a poor electrical connection. clean as needed. otherwise you may have to replace the sensor.

u followed the pin point tests for these codes you had? did you disconnect the battery after you installed new parts? sounds like u have not fixed the problem, you do have a repair manual correct? did you check the intake air hose for cracks on the bottom which will cause a stall? did you clean the idle speed control valve and the throttle valve, they can also cause this stall, never adjust the the hard stop screw, it will chnage nothing and cause all kinds of other problems, it is not the problem, most likely the intake is sludged up clean it and then disconnect battery for 5 minuter, driv about 50 miles and problem should clear up, if it doesn't you have other issues, recheck for codes.

Sounds like an air leak on the intake to the engine, listen for a hissing sound while the engine is idling, probably the manifold gasket. Good luck

I have a 1997 626 2.0L 5speed when im driven it like rev limits cuts out around 3500-4000rpm, and when i rev it up and past 4000rpm it stalls, anyone have a idea whats wrong??? thanks i just replaced the crank sensor and egr and still. good power put cuts out

low idle speed...or the need of a tune-up

i would start by checking the spark plugs and leads. if that ok i would think there is a problem with the dispack that the spark plug leads fit to, if its cracked or any rust i would replace.