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1239 Views 12 Replies 6 Participants Last post by  1wizard!
OK, i thought my opti spark was going out again, but i took the spark plugs out and 2/4/6/8 plugs are dark, and 1,3,5,7 look clean. my car is still stuttering, what could be going on??
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Ohm the injectors and do a fuel pressure leak down.
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