Protege5 Wavering Idle Issue

:
2005 Mazda SP23
Hi,

I have a 2002 P5 with a wavering Idle.... a bit a sluggishness in second at low RPM.

What would be the areas to check?

thanks
 
Clean the EGR and replace the spark plugs and wires. Coilpacks would be next if they are old or original.
 

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