monoloco38 Posted September 25, 2019 Report Share Posted September 25, 2019 I have a 1993 couple deville 4.9 v8 with 177k on it. Completed a tune up amd it seem to do the trick. Was missfiring before. Recently started missfiring again. It seem like after the battery was unplugged for a while it ran fine. MAP issue? Have a E65 code. Suggestions? Quote Link to comment Share on other sites More sharing options...
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