Ive had this happened before...and was getting that same code....eventually led to a faulty Throttle Chamber. Everytime u shut ur car off and on it resets the throttle chambers...so like how our RPM gauge goes up and down prior to or at start the throttle chambers wil also do the same thing. Best way to find out is pull off ur intake pipe just enough to have a visual inspection of the intended interior region of the throttle chambers with the MAFS still connected....have a buddy help put by putting the car to on but not starting it....u should be able to see at this point the throttle chambers open and close....if ur throttle chambers flutters then it's fried and must be replaced. It just a matter of time before it goes out. Mine kept doing what u explained til it finally went out one day and didn't want to Fire up.
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2013 Nismo Z34 / FI TT #091 / IG: @lilzilla_z34
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