Hello I replaced the motor on my Altima and am having a high idle issue. I do have a snap on computer that does the idle relearn but fails and still stays at about 1500-2000 rpms. I only have one engine code on the computer for the crank sensor on the rear of the motor. I have read that unplugging an injector and doing the idle relearn would help but I for the life of me can not get it to work. Please help!!!