Question about 1992 Mazda MX-3

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Mazda mx3 fuel problem

I have a 1992 mazda mx3 running rich spits sputters eats gas changed tps mass air flow sensor new injectors plugs wires cap

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  • tiffini20 Jul 31, 2009

    mass air flow sensor but we replaced it twice still doing the same thing.

  • yadayada
    yadayada May 11, 2010

    that is trouble odes

  • yadayada
    yadayada May 11, 2010

    what rouble codes do u have?

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Posted on Jan 02, 2017

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elshaddai159
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SOURCE: my mazda 1992 mx3 it runs great cold but after

Hi,

This sounds like you have a faulty coolant sensor switch which is telling your computer that the engine is still cold.

Replace this and you should fix this problem.

Thanks

Jason

Posted on Sep 18, 2010

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1 Answer

My 2003 Astro van has been running fine the I got gasmonday night and as I pulled out the gas station it spit and sputtered like I got bad gas or trash in filter, then it started working fine.


Mass air flow sensor maybe drity or going bad . Ever had it replaced ? Have you replaced the air filter lately ? Video's on youtube showing how to clean mass air flow sensor , you would have to buy a can of mass air flow sensor cleaner . Also while your at it clean the throttle plate , again there are videos on youtube . How did you check fuel pump ? To do it right you would need to hook up a pressure gauge . Also check flow .Videos on youtube .Has the check engine light come on ? Also you mite try some fuel injector cleaner and or dry gas for moisture in the fuel !

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COULD BE WEAK FUEL PUMP WEAK IGNITION SYSTEM CAUSED BY A BAD COIL CLOGGED AIR FILTER..CLEAN FUEL INJECTORS SEE IF IT HELP.IF NOT YOU HAVE LEAKING INTAKE OR LOW COMPRESSION CYLINDERS.CODE SCAN FOR FAULTY TPS SENSOR.

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1 Answer

My mazda 1992 mx3 it runs great cold but after warm up it spits and sputters and runs rich can you help please what could it be


Hi,

This sounds like you have a faulty coolant sensor switch which is telling your computer that the engine is still cold.

Replace this and you should fix this problem.

Thanks

Jason

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it sounds like the mass air flow metering sensor thats in the air intake pipe ,but any more than that iam at a loss as none of these cars here in spain so i cannot tell you exactly where to look

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If your car is fuel injected it may be the throttle position sensor, (TPS) hook up a DVOM and check that voltage output of sensor is steady closed to open throttle, since 35MPH is near closed throttle, that is were to focus your attention, also the mass air flow meter (MAF) may be at fault, do you have any codes? These 2 parts donot as a rule set codes.

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