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2000 Mazda 626 Question: what would cause idle to variate 5 to 800 rpms



, Winston Salem, NC, December 28, 2011, 20:28

almost like a misfire ,but runs perfect on road,I just put in plugs and cleaned injection

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  • Answer #1

    December 29, 2011, 11:42

    There are several other possible causes. coil packs, low fuel pressure , intake vacume leaks. If you still can not find the issue give us a call.

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