97MaximaSE

Ok when my car is cold it stutters and sometimes almost stalls. I mean the lights dim almost to the point of stalling but it doesnt. Then sometimes when im driving RPM's just bounce up and down and the car almost starts bucking. Now ive changed all 6 coils, plugs, cleaned IAC, bought a new maf, cleaned TB, and fuel injector cleaning service. Im almost about to give up on the problem and just deal with it since its not giving me a code. Im thinking an injector problem but im also open to some more opinions and i dont know what a dying injector feels like. Also it does it more when the car is cold and drives almost perfectly normal when up to operating tempature(it will still do in on some occasions)

happyricefob

iTrader: (7)

plugs = spark plugs?

how about ur knocks and O2s? wat kinda gas are u runnin? u have mods? intake manifold/hoses secured? leakage on ur exhaust system?

97MaximaSE

brand new ngk's, changed all o2's and knock sensors within the last year, no exaust leak, ive looked for a vacuum leak but i couldnt find one. My mods are hybid, y pipe, b pipe, rvm pulley.

PedalKick

Check your coolant temp sensor as it will affect cold engine operation.

97MaximaSE

wouldnt it throw a code? the only code i was getting was rear o2 but that was on and off only in the winter...it hasnt come back on since it warmed up