1st you came to the right place to ask questions. the370z.com has saved some members thousands in repairs. I was saved some change too, not once but twice.
As for problem. Sounds like throttle bodies need cleaning as well as the MAP and MAF sensors. These are all easy to do and should cost you no more than the can of cleaner and some towels. The throttle bodies should be cleaned after 30K miles.
How many miles on the car?
edit: When I say clean I mean clean manually not just spray and wipe. Remove(no need to unplug wires) and clean them with towels and q-tips. When i cleaned mine i removed every bit of buildup i could.
Last edited by Justice97; 03-16-2016 at 02:28 PM.
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