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maza

rough engine idle

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Hello,

I am trying to find a replacement Mass Air Flow Sensor for my Mazda 626 1988 coupe, as it has developed a rough engine idle ! ... does any one know if this part was shared with any other car, or is it possible to get this part repaired / overhauled.

C.

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Have you checked rockauto? More importantly, has the MAF been certainly diagnosed as the problem (either by yourself or a garage technician)? Rough idle can be caused by many factors, and more often than not, it is a maintenance related item like a clogged air filter, worn spark plugs or faulty ignition components, dirty intake, or possibly old or worn timing components. Sometimes, a fuel system issue can cause a rough idle. In most cases when I have experienced with a MAF failure, the vehicle will idle fine but does not drive well.

I'm guessing your car is a GC series? If so, the MAF is a door-type Bosch AFM (air flow meter), which fails most often due to a weak return spring or internal corrosion. Several vehicles in this age range use a similar system, but I am uncertain if any of them interchange as they can be designed for different reference voltages. If you are savvy with a Multi-meter, you should be able to determine if the AFM is putting out correct signals.

If any of this is over your head, I would highly recommend a diagnosis from a licensed and trusted technician.

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