you need a consult II or nissan data scan. There is a manual way to reset it but sometimes it does not work. here is the procedure-- 1) start car and allow it to warm up to normal operating temp 2) unplug tps sensor with car runnning wait 30 seconds then plug the tps back in. This is supposed to force the ecu to relearn the tps but usually I end up using nissan data scan to force relearn mode.