my obd ii reader picked up the code P1084 on my 07 g35, to which indicates an exhaust valve timing sensor. i replaced it (maybe not the best, but i've bought sensors from this company before and seems to be no trouble) and my car is still throwing me the code. i resetted the ECU, did all the learning procedures including the idle reset and the code is still there and my idle is not normal (~1100 RPMs). can anyone help?