Question about 1993 Mazda MPV

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Rough idle after plugs and wires change - 1993 Mazda MPV

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First verify plug wires you might have one crossed. get a wiring diagram and check each wire from the cap to the plug , cyl 1 to cyl1 ect. it is very easy to cross one. make sure the wires are on the cap correctly, make sure the cap is on correctly. any part store will give you a tune up print out showing cyl location plug wire timing ect. then you want to check everything is plugged in from vacuum lines to tps to mass air to map sensors . the car ran fine before this so its simple just retrace and look closely i bet there is 2 plug wires crossed or something is unplugged. just do one wire at a time from the cap to cyl. make sure your going the right way on cap. just get the tune up print out and retrace each wire.

Posted on May 31, 2009

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