For that information, I suggest you pop the hood
Somewhere on the underhood emissions sticker, it will answer your question. If it is a California emissions vehicle, the sticker will mention it. If it doesn’t mention it, then you’ve got a federal vehicle
So you’ve already got a remanufactured ECM. I certainly hope that the cause of your problem.
Here’s why I’m saying that . . .
At work a few months ago, I was working on a 1998 Ford F-150, which had problems with the electronically controlled automatic transmission.
The underlying cause of the problem was the ecm. It was not providing proper ground for a solenoid
Replacing the module with a remanufactured unit took care of the problem, and the transmission resumed normal operation
However . . .
A few weeks later, the vehicle intermittently wouldn’t start
This was a new problem, one that didn’t exist before the remanned module was installed
Diagnosis confirmed the remanned module was the reason for the no start.
Replacing the module yet again got the truck to a state, where it started reliably
So by replacing the original module with a remanned module, we essentially traded one problem for another
I strongly suspect that whoever rebuilt the module fixed the original problem, without “going over” the whole thing
I’m mentioning this because every time we swapped modules, we wound up with somebody else’s module, so to speak. I’m sure OUR module got rebuilt, but who knows who got it?
I believe the module is partially inside the engine bay, and partially inside the cab. You have to release a locking tab from inside, if you want to remove it