Vehicle 05 altima 3.5 5MT. 182k on body 87k on motor. I have been fighting this issue for weeks. For months once vehicle starts to show temp on the gauge if i have more than 50% throttle input and rpms get to 4k. It will buck violently until after 5k. Then it smooths out but if i slowly ease into that rpm range than it wont do it. also wont do it with a cold engine. I have no codes except for rear 02 sensor inop. I have tried a used maf. i replaced the cam and crank sensors. Still an issue still no dtc for anything but o2 sensor. Please if anyone can help at all.