Alright I hope I put this in right place if not plz forgive me. I need help I have 1989 bonny 3.8 LE and its gone mad. Ive replaced MAF fuel pump, fuel filter, starter, alternator, battery, plugs, wires, battery cables, air filter, water pump, and every signle fuse i could find lol it will not start no matter what i do to it and now im just lost dont know what it could be. It cranks but acts as if its not getting enough power to turn motor fast enough to start hope that makes sense any help you can give me i would be forever grateful thank xxxxxxxxxxx :( miss me car lol

Do you know if you are getting spark and fuel? If it is cranking that slowly, about the only thing left to replace would be the starter. Before you do that, clean all of the connections, including those on the starter, see if that helps. Also, as a test remove the serpentine belt from the motor to see if it spins faster.

Doing it now will let you know what happens thank you so much xxxxxxxxxxxxxxxxx

could be the knock sensor... my 88 celebrity did that when it died... replaced that, started right up.

It COULD be 100 different things. Let'* tackle this logically instead of throwing more wasted parts at it.

Verify spark and fuel for starters. Pun intended.