1992 f-150 e4od ecm

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Apr 22, 2015 | 09:33 PM

sportsman70

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1992 f-150 e4od ecm

doing engine swap from 5.0 to 5.8w my truck does not have mas air and was told as long as i get a ecm for 5,8 e4od computer for speed density it will work.can any one verify this for me and how to read info on ECM THANKS FOR ANY HELP,

Apr 23, 2015 | 07:34 AM

rla2005

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You are correct, you need a PCM from a 5.8L truck w/E4OD transmission for this swap.

Some helpful info: Ford Fuel Injection » EEC Program Codes

Best bet is to use a PCM from a 1992 model. On the other hand pretty much any PCM meeting the above criteria from ~1988 to 1993 will work too. 1994 and later PCMs are setup for a different ignition system.

Are you sure your current truck has an E4OD? Most 5L trucks have an AOD in this era.

Apr 23, 2015 | 11:03 AM

sportsman70

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Yes it's a e40d Found that out when I had to get it rebuilt.lol thanks for the info .

Apr 24, 2015 | 04:33 AM

93F14x4

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Glad to hear that someone else has the same setup that I do. I have a 93 F150 with 302/E4OD. I will eventually be swapping to a 351W as well. Thanks for the info rla2005!

Apr 24, 2015 | 06:27 AM

GocartMozart

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Back to OP, can someone clarify that there is a difference between ECM with SD vs. ECM with MAF? If so, how do you know the ECM is configured for SD vs. MAF? Thanks.

Apr 24, 2015 | 07:09 AM

rla2005

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Quote:

Originally Posted by GocartMozart

Back to OP, can someone clarify that there is a difference between ECM with SD vs. ECM with MAF? If so, how do you know the ECM is configured for SD vs. MAF? Thanks.

Each style PCM is programmed for feedback from a Manifold Absolute Pressure (MAP) sensor for a Speed Density based system versus feedback from a Mass Airflow (MAF) sensor. You cannot swap one for the other without changing sensors and wiring. Speed Density PCMs are wired to fire the injectors in batch mode (4 at a time for a V8). MAF PCMs are wired for individual injector firing (sequential).

You have to match up the PCM programming code/part number with a lookup table to determine if a PCM is programmed for one or the other. The link I posted earlier has some of that information listed.