Hey guys so I need someone that knows there hr engine I have a 2007 g35x 160k miles love the car selling is not a option. So The car Boggs at 1-2k rpm after that no issue at all happens all gears and in park or neutral .when the engine is super cold and you let the idle drop and drive it it won’t start doing the issue until it warms up good 5 min if not less then does it all day . No codes I changed spark plugs ,throttle bodies ,mass air flow sensor ,coil pack ,pedal sensor and one oxygen sensor bank 2 sensor 2 . Bank 1 sensor 2 is reading lean from the snap on live data don’t have my own tool to mess with it and see the changes . The car seems to have no air leak checked for that my only thing is fuel now but wonder if anyone has ever had this issue it only happens with soft pressure on the gas pedal if you hit it harder past 2k rpm it will rip of a stop with no bog. Before I changed oxygen sensor bank 1 and 2 were way off on the voltage now they are both around .35 before one was over 1.0 one was at .30 down stream sensors . Have no clue what else to change issue came on driving slow in traffic no abuse car is stock just got z1 intake tubes because mine were crumbling and I did a muffler delete because you have to love the sound of these cars .that shouldn’t be a problem checked for leaks nothing found no codes pleas help h02s2mntr (b1) lean that’s what the snap on tool is showing ho2s2 (b1) .29 b(2) .36 got a couple more readings I got to take a picture of b/fuel schdl (ms) 3.49