VQ35 problem(s) 5.5

Grand_hustle17 · 08-25-2009, 04:07 PM

need help from the NA guru's... over the past week myself, datdude20, and phantomV helped me change my valve covers (easy task huh)... well after changing the covers and gaskets the car started misfiring, checked all the coilpacks (they were good), checked and changed the sparkplugs (for $60 i would assume all the spark plugs are good) however with changing the spark plugs it fixed most of the misfiring problems but it still somewhat lingers, the car is very sluggish, it sounds like an auto 4th gen with headers (and i have no headers) i can bearly past 5K rpm, whenever i floor it the misfire gets worst and it sounds as if its gettn ready to backfire and shut off, went out and bought some break fluid and sprayed the IM and the hoses hoping for a vaccum leak (no vacuum leaks either...) Im all out of thoughts now... what can cause my 5.5th gen to very slightly misfire??? please help i got very little from the 5th gen section

**nismology** · 08-25-2009, 04:12 PM

I can't allow the discussion of a general maintenance issue in this section but I will allow you to link to the original thread.

Grand_hustle17 · 08-25-2009, 04:36 PM

o.k... thanks

Changing my valve covers