Mazda 626 (1997 - 1999) - 98 2,0 idling speed

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Sat 5 Sep 2009 14:16
98 2,0 idling speed - theho
Does anyone know how to increase the idling speed on this model?
The reason is it has always idled on 500RPM, this was low but it never cut out.
I have just left it standing for 2 months without driving ( the battery was also flat), and the now it struggles to stay running when idling once the car has warmed up, it has also cut out several times.
What should i do?
It has done 107000miles.

Thanks in advance.
John.
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Sat 5 Sep 2009 15:09
98 2,0 idling speed - Peter D
It either has an idle control valve of an idle stepper motor that is not working. Regards Peter
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Sun 6 Sep 2009 20:39
98 2,0 idling speed - cj1000
hi probally caused by base idle reset as it will have returned to factory setting so ecu will not becalculting wear/ dirt in the throttle housing (cleaning could help but dont touch the adjustment screws as this will damage the throttle body as its a one time set at the factory)
hope tis helps
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Sun 6 Sep 2009 21:22
98 2,0 idling speed - Hamsafar
Idle control valves are notorious on this model. I used to have a webpage about it. I think they were called IACs. try googling IAC mazda 626.
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