Question about 1990 Dodge Ram

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Engine swap lookin for a 5.9 computer #

I have a 1990 Dodge Ram Power W/100 4x4 Pick up, started out as a 5.2 V-8 with 518 auto trans over-drive non-lock up. Truck is still good runner, but engine wore out, so I replaced the 5.2 V-8 (318) TBI with a 1990 5.9 (360) TBI Engine. I changed all sensors and replaced torque converter, the truck runs ok with 5.2 Computer, but I would rather have the 5.9 ECM So that it will runs its best. I have no # to go by....I have recieved 4 computers from a independent rebuilder, and everyone they sent me wouldn't even start the truck. I have been around mopars all my life, this truck is pushing my buttons. Can anyone help? Am I missing something? I was told by a mopar used auto parts store that I could only use a computer from a 1990 5.9 and it had to come out of a Ram Power pick up or a Ramcharger, and it had to be 4x4 and auto trans? Any suggestions? Thanks for this sight at least I feel better knowing someone might have run into the same problem. Mopar For Ever ! Paul

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  • PEM340 Oct 11, 2008

    The dealer told me that they couldnt use the vin # to get the right computer because it would refer me to the 318 computer, I asked if i changed the "y" meaning 318 in my vin#, to a "z" meaning 360, after i tol them that, they said they truck was to old to do that. Going by the vin nuber I mean. They said they needed a Computer # to go by. How would they help someone else if the truck they had didn't have a computer , or the words and numbers were wore away. So if I knew someone that had this truck I would offer them a few bucks to give the correct computer # for my truck. Of course it would have to be almost the same as mine, with the same options. Some of the guys now days only know what the computer tells them. And they dont really want to give you any help I have found unless you are bring the truck to them for a repair job. At least where I come from.

    Maybe in a small town somewhere you can get some really good help, but around here forget it.

  • yadayada
    yadayada May 11, 2010

    Why don't you consult the Dodge dealer's parts dept??



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If you told a good dealer parts person what you where trying to do they could get the correct calibration processor for you, you are dealing with a bunch of by the book parts people, can't think outside the box.

Posted on Oct 11, 2008


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