+1fastpathy35 wrote:The throttle body is dirty. the head design on the vq35 causes those engines to pull oil through the pcv valve. The burned oil and carbon really gum it up and the little space that air is supposed to get through at idle, is sealed off. I drove mine for 4 months without a CEL coming on.
Nissan quoted $1300 for a new throttle body and computer. Both were supposedly bad. Well i decided to take a look myself and the mothers left my intake loose so i pulled it off and it was very dirty.
Its unsuggested by most people because the fly by wire can get messed up but i took it off, and scrubbed it with a scotch brite and soapy water.
Goodluck. I signed up just to help with this because so many mechanics couldnt figure it out, nissan i think knew but claimed it was so many other things. I found it myself and it cost me $18 to buy a new allen pack (someone misplaced the one i needed) mass Airflow cleaner and a box of scotch brite pads.