Need to replace computer? - 1996 Chrysler Town & Country

How can you misplace an ECM!

Your ECM needs to be preprogrammed with the VIN Number. You will need an auto-electrician.

NOTE: We will need your Vehicle Identification Number (VIN) in order to program the unit.
During the checkout process, please enter it in the text field labeled "Vehicle Identification Number (VIN)" located in the Vehicle Information section.

https://www.fs1inc.com/engine-computer-programmed-flashed-2003-lincoln-navigator-3l7a-12a650-ea-efd0.html

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Dear Sylvia,
Of course you can replace the computer, but remember, if you have not fixed the problem to cause these symptoms, you may find the new computer will not work either.
You need to be absolutely sure the computer is the problem.
It would take many pages of this web site to tell you how to replace the computer, so it will be just as easy for you to go to a library or a car parts store, and get a repair manual and follow those instructions.
Libraries check out such book, you need not buy them.
Some name brands are : "Chilton's", "Motor's", and "Haynes".
All are make and model specific.
God bless your efforts.

ill start with....... any time youmpost an automotive question you need to let us know the year make model and engine size!

the computer controls and monitors many different things. there has to be something that the computer is looking at or controlling that is failing. Tat part that is failing is being overlooked. When the computer fails what is not working? That is what you need to figure out. Once that is figured out the part tat is not working can be repaired and then, and only then, can the computer can be replaced with the confidence of a proper repair.

computers generally do not fail. its the components that are tied top the computer that fail that cause the computer to then fail.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

No such thing there may only be 3 cars in the entire world that would have to program a transmission replacement if and only if needed its to clear any transmission codes out of the computer but if the problem dont exsist anymore the computer mil lamp goes out anyway

more input
if computer bad replace it anything with computer needs maintenance or replacement if failing overall youll have to replace

Dealer . need factory scan tool to go into system an turn it off .

WHAT COMPUTER DID U REPLACE? WHY DID THE OTHER COMPUTER BURN OUT. THERE MUST BE A PROBLEM IN THE HARNESS CAUSING THE COMPUTER TO BURN UP. COMPUTER DO NOT JUST BURN OUT FOR NO REASON. I SUGGEST TRACKING DOWN THE ISSUE FIRST. GIVE ME MORE DETAILS AND i WILL BE ABLE TO TELL YOU WHAT NEEDS TO BE CHECKED .

THEY USED TO BE UNDER THE PASSENGER SEAT

I don't know why replacing an engine would cause the computer to have to be reprogrammed or replaced. If the engine was replaced with the same type and calibration of the engine that the vehicle was originally equipped with, everything should simply bolt and snap in. If everything was installed correctly and all connections were made properly, you should be able to twist the key and drive away.

My biggest question would be this: Was the old engine still running when it was determined that it needed to be replaced? If the answer to this question is yes, then the next question is how can a working computer go bad from replacing an engine? IT CAN"T!!! --- What changed during the process?

Always disconnect the battery before replacing any computer parts.
And yes mileage should get better.