Missfire
#4
Had/have the same prob, 99 5Spd, injectors/TB cleaned and plugs changed. Dealer ran diags and saw no prob. Problem started in April, right after I changed from a Monsterflow to a paper filter. Went away about 300 miles ago (mostly happens under WOT at about 3000+RPMs). Then I went to Raceway (usually use Sunoco Ultra) and they filled it with mid rather than premium. Doesn't happen all the time, I'm guessing it's either a coil pack or (less likely) the airfilter. Filled it with Ultra and then added 5 Gal of Sunoco 100 Octane, still happening, seems better in the cold. More later...
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ballerchris510
3rd Generation Maxima (1989-1994)
9
09-10-2015 09:35 PM