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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Correct ecu?

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Old Mar 9, 2024 | 09:52 AM
  #1  
Old white ford's Avatar
Old white ford
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Correct ecu?

Let me start by saying my truck has had both motor and trans swapped.(was a 5.0 auto now 5.8 manual) I have the old ecu removed, but the sticker is non readable. My question is how can I assure I purchase the correct replacement ecu? Just match year, motor and trans? Thanks again.
 

Last edited by Old white ford; Mar 9, 2024 at 10:08 AM.
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Old Mar 9, 2024 | 10:23 AM
  #2  
NotEnoughTrucks2014's Avatar
NotEnoughTrucks2014
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Correct ECU won't be the one the truck was originally equipped with, mainly because of the 5.0/5.8 swap. ECU from a 5.8/manual would be the best match. Next best would be 5.8/non-OD automatic.

Better option would be an aftermarket ECU like PimpX or Holley Terminator X.
 
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Old Mar 9, 2024 | 01:54 PM
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wwhite
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What trans was with the old ecu?
what is the fuel infection now, batch fire or sequential, mass air flow (maf) or speed density (sd)?
what are the future plan’s performance wise?
 
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