I have a 1994 Ram250 van 5.2L automatic. The ECM needs to be replaced. Checking several parts sites, I find there are multiple listings for this part varying from $129 to $279. They all have different numbers. There are no part numbers on my ECM. How in the heck do I determine which one I need. I was given a spare when I purchased the van but it must have been bad or the wrong one. Help!

 

pay the $129............

 

Check with the guys selling this one. Explain to them that you don't have a part number and they should be able to determine the correct one you need.
https://www.ebay.com/itm/1994-1995-D...8/333087878134

 

I checked that one. It is the wrong part number. According to Dodge there were only two used on that year van. One was Federal emission w/cat, which I have and the other was non emission. If Dodge is correct, I need part number 4886671. Might have to send mine in to G7 Computers for reman. They claim one day turnaround. Thanks for the heads up!

 

There are a few 4886671 ECMs for sale on eBay, some used and some rebuilt.