I have a Q45 infiniti 2002 code p0300 came up does it just need a tune up? on 2002 Infiniti Q45

when idle its fine under load is when it misfires .

by in Gilbert, AZ on September 12, 2012
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1 answer 3 comments
ANSWER by , September 12, 2012
it could need tune up coils or insulators. it could also be fuel related
COMMENT by , September 12, 2012
where do you recomend i start so i dont waste so much money?
COMMENT by , September 12, 2012
with all do respect seek a mech opinion on the issues otherwise we are guessing. look for a good AAA approved repair shop in your area
COMMENT by , September 12, 2012
thanks for your input.