Replace the idle air control valve right below the throtle body this can be a very expensive part so go to a u pull it junk yard
headgasket
I had the same problem on my 98 Mazda 626 and the O2 sensor was faulty.....
This might be an air or fuel problem at the most basic diagnostic level without looking at it or asking more questions.
idle set too low, adjust the fuel to air mixture on a carb vehicle.if fuel injected, your injectors may need cleaned.Kadius1964~blog me.
sounds like you have a air leak son the in take some where.
what type of oil can i use for my Mazda rx7
Intake manifold air leak or you need to put some fuel injector cleaner in. Did you gap your plugs correctly?
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Carb.? bad needle seat valve? Float needs adjustment?
Perhaps you have a leak in your transmission. Check the transmission fluid while the car is running. DO NOT check any other fluids while the engine is running.
Could be a weak fuel pump or plugged fuel filter.
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