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I have an 89 E150 with a 4.9 that has been in the shop for months, many parts replaced, now we are to an intermittent miss with no reasoning and stalling on occasion, leads us to the ECM, no one has it, and O'reillys quoted $600 for what they found, I will junk this van before I spend that much, in fact I'm about ready to junk it now, gut everything I put in it out, destroy what I can't use just so no one else can have it. Do I have the unicorn ECM that ford only made one, its beyond ridiculous, anyone else know: e8ae-6e061-acg.
You are looking for a 12A650 processor right?
That 6E061 is the programming
The Ford dealer should be able to give you an obsolete part number to look for
I agree 600 is steep
We hit all the parts houses, O'reilly was the only one with it under their special order, they range from $100 to $200, until you get to my number which was $600, I tried to tell dad its on the door, he had the ECM pulled to cross reference, no one opened it, just put it back in the van, I bought replacement capacitors, guess I'll open it up and hope the board is OK.
I've been searching ebay for a year for this thing and not seen it yet, sunk a lot in this money pit, the only thing left that could be the intermittent idle issue is the ECM, its untouched. So the second number is programming, could I get by if I just matched that?
I suppose the stickers are long gone off the valve cover indicating the calibration
Correct, it should be on the drivers door too
The door sticker with the production date painted over or gone?
True not a lot of 6 cylinder fuel injected vans out there for a good used processor at the junkyard but I would check ebay and others
take a picture of your processor and post it
I can look at the few junkyards around here
Funny but there are tons of 4.9, yet not one of them share the same numbers as mine, which has me perplexed, I have the c6 transmission, not that the 89 had a computer controlled one, but I have no overdrive, its as simple as you can get without it being a manual transmission, I guess the door sticker matches the ECM, not seen it, did save the door sticker in my phone for a reminder when searching.
Funny but there are tons of 4.9, yet not one of them share the same numbers as mine, which has me perplexed, I have the c6 transmission, not that the 89 had a computer controlled one, but I have no overdrive, its as simple as you can get without it being a manual transmission, I guess the door sticker matches the ECM, not seen it, did save the door sticker in my phone for a reminder when searching.
It misses like crazy at idle, smooths out when you drive it, timing is impossible to set, would think it skipped a tooth if it wasn't geared, was cranking hard until the starter relay fused, now its hung up cranking, so time to replace the starter relay, pulled the ignition wire, no effect, wont disengage, I believe the miss is due to the ECM, its all I'm left with, replaced everything else, and its the only thing that is original.
I have the high amp alternator arrangement, 100 amp, is that why my codes differ from all the others, does the alternator factor into the program, I can't see why as its controlled by an external regulator but that is all I can see that is different on my van is it was ordered with a larger alternator?
I am, as always, confused Maples. I wish NumberDummy was here to help with this. I looked through my master parts catalog and the only thing I could come up with was a calibration code of 7-52L- R0,,,, NOT R00. My catalog goes up to 1989. I looked through all of the calibration codes and yours was not listed anywhere else. All of the calibration codes starting with a "7" were for 1987 vehicles. all the 1988 vehicles started with an "8". 1989 started with a "9'.
If you notice on the calibration code chart for your van, there is a 1987/ with no other numbers after the forward slash. The forward slash normally stands for 1987 and "on" up as far as the catalog goes. I am not very experienced with the catalog and would want to double check my own thoughts, Bu there is what I came up with while trying to find your calibration code. It is very possible that the 4.9 uses the same ECM as the 1987.
In the page that I posted, the "bold" number is your Ford PCM part number. E8TZ-12a650-BYA.......
The other numbers are the part numbers found on the PCM itself.
Your numbers do not match any of this information. What is the chances that you have the wrong PCM in there to start with? Perhaps the PO just replaced it with anything he could find?
I don't recall the actual date Ford used fuel injection, over the computer controlled carburetor, I can't wait to get the ECM out and solder in new capacitors when they come in, I hope the board isn't damaged, its reached the point it will not idle anymore in gear, if it were a V8, I'd have put a carburetor on it, just too much trouble to do that on an inline, intake isn't cheap.
This is all original, they cross referenced the number on the ECM when they pulled it, didn't use the code on the door, I've not seen it to see if it matches, ran until I got it, died shortly after, injectors failed, distributor was broken, transmission burnt up, its been a constant mess, could have gotten the entire front clip replaced on my 73 and replaced the drivetrain for whats been spent here.
I see many with the 12A650, wonder what would happen if I put that in mine? Could be high altitude, van came from Virginia originally, up in the mountains.
I got the ECM out, soldering new capacitors in it currently, need one more so I can't finish till Wednesday, had leaked out staining the board, ate off some of the rubber coating, the bottom, well it had corrosion on the aluminum base, must have enjoyed the water leak, I hope I can save it.
E8TF-12A650-BY2A 8PR
If you cant save it then you will need to find a E8TZ-12A650-BYA processor. If you contact a site that rebuilds and sells ECMs then you might be able to get them to cross over another number that will work. When I was looking for a ECM for my van, the guy told me that there were several that would work. The original one matches your calibration code and is supposed to meet all the standards that were in place at the time.
Good luck with the repair. I bought a rebuild ECM from RA but never installed it. Now the warranty has ran out so I hope it works. Post the capacitor part numbers you used please.
I think I have saved it, idle is low, sure it timing, but I have my next glorious issue, during restart when it quit, starter solenoid hung up, had to pull the battery cable, again, this is the second solenoid to do this, I can only guess the starter is bad, creating a load the solenoid can't handle, just keep replacing parts until I've rebuilt the van. I have a junkyard ECM that worked, going to replace the caps in it and set it aside for now.
Starter was the original from the factory, it has damaged my flywheel, will just get by with it, I'm not messing with it right now, the new starter works, tho there is a bad place on the flywheel, engine is running, has a slight miss, will disable the EGR and see if that fixes it, most put restriction in, the 4.9 has too much exhaust pulling into the intake. Check engine light is off, tho I'll check for codes later, just have to be happy with what I got I guess, need a mechanic with the tools to read this stupid OBD1 setup.
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