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Old 05-19-2010, 01:02 AM
jrey33185 jrey33185 is offline
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ecm replacement

i have a 94 ranger 4.0 M/T my ecm burned up and i want to know if i can change it out for a similar one. advance auto suggest i buy one with the number
F47F -CMA but my computer has a number of F47F - CLA. The CMA computer i've seen befor as the closest match the CLA seems to be much more rare and goes for a couple of hundred more, thanks
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Old 05-19-2010, 01:27 AM
g_k50 g_k50 is offline
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Junkyard, look for one with the same number. My understanding is that they hardly ever "burn up" Have you checked with Ford about having it re-flashed?
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Old 05-19-2010, 02:29 AM
jrey33185 jrey33185 is offline
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thats what everyone keeps telling me but i opened up the case and the circuit board is actually burnt. the ecm i have is extremely rare nationwide junkyard searches turned up like 1 or 2 both a few hundred dollars advance has the CMA model for a little over a hundred and oreily's has the exact number match for well over 300
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Old 05-19-2010, 10:32 AM
wtroger wtroger is offline
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You better find out why it burnt up before you put another one in there. It is very rare for the ecm to get burnt unless there are serious electrical issues with the vehicle.
I did some searching And I think the CJA or CMA will probably work they are for the same year eng, tran, and 2wd

Last edited by wtroger; 05-19-2010 at 10:46 AM. Reason: more info
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Old 05-19-2010, 12:56 PM
jrey33185 jrey33185 is offline
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what i did right before it burned out was i took the mass airflow sensor out and cleaned it with some carb cleaner would that overide the computer with current is there any way to checkwhat burned it out
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Old 05-19-2010, 09:48 PM
wtroger wtroger is offline
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Most of the functions of the Ecm are done by switching ground off and on On the MAF sensor a current is sent to a heater wire the ecm adjusts current via ground switching to keep that wire at a given temp it figures out how much current is being used and that tells it how much air is moving through the intake. If you some how shorted out the MAF it could cause this problem. If you think this was a probable cause I would probably get another MAF to be safe. A lot of people are going to take issue with my next statement but I have had good luck with salvage yard Maf sensors and ECM's they cost about a third the price of a new one.
You can send your ECM in and have it rebuilt the chance you take there is it might not be rebuild-able then you are out the freight. If you buy an Ecm that is not the same as yours the parts store might not want to give you back your core charge then again most of them don't check that close. Good Luck
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Old 05-19-2010, 10:40 PM
jrey33185 jrey33185 is offline
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thank you i'm going to hunt for both and hope for the best
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Old 05-19-2010, 10:40 PM
 
 
 
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1994, bronco, burned, burns, cma, ecm, eecm, f150, f47f, f47fcma, ford, problems, ranger, rebuilt, replace, replacing, truck, van

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