Okay, I recently posted with no luck, my 98 maxima's auto transmission recently died, only about 80k miles, previous owner must've put a beaten on it. Anyway I swapped a spare auto transmission from a 97 maxima that I have, now it is so hard to start. Tried running an extra ground (grounding issue), cleaned the TB, and IACV, no luck, Swapped the TCU, no luck, changed out the resistor on the strut tower, no luck. So therefore I am lost, any help is much appreciated!

No need for two threads on the same topic. Post in your other thread please.