How to program ‘93 F150 without ECU

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Apr 16, 2018 | 02:37 PM

Dirtypenny310

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How to program ‘93 F150 without ECU

1993 F150 XLT, 4x4 (shifter), Reg Cab, Short bed, automatic

-I looked for ECU behind emergency brake...not there.
-found ECC under hood driver side.

Can i I install ECU if it doesn’t have one?
*Can I program my truck through the ECC?
**if so, what programmer is recommended?

Thank you!

Apr 16, 2018 | 04:46 PM

Conanski

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From: Ottawa, Ontario

If the truck doesn't have an ECU the engine won't run, and yes on a '93 it would be accessed from inside the engine bay but these ECUs are not programmable.

Apr 16, 2018 | 10:45 PM

NotEnoughTrucks2014

Fleet Mechanic

Joined: Mar 2014

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From: Saskatchewan Canada

Quote:

Originally Posted by Dirtypenny310

You lost me when you changed from an ECU to ECC. I think we are all on the same page, but what would you define as the difference?

What are you trying to accomplish with programming? The best and only method of programming on a Ford EECIV ECU is through the J3 port and it's a pretty steep learning curve. Have a look at the Moates site.

Ford 1986-2004 : Moates.Net

Apr 17, 2018 | 10:19 AM

Dirtypenny310

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The overall goal is to increase mpg the best I can and to calibrate the different features I have put on the truck. Fix the timing, factor in the new suspension, shoes, and eventually other performance parts.

Apr 17, 2018 | 10:54 AM

rla2005

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From: Kentucky

Quote:

Originally Posted by Dirtypenny310

The overall goal is to increase mpg the best I can and to calibrate the different features I have put on the truck.

Fix the timing

What's wrong with the current timing?

Quote:

Originally Posted by Dirtypenny310

factor in the new suspension, shoes, and eventually other performance parts.

The computer (PCM) has no interaction or control with the items in bold above. It controls the engine and if you have a computer controlled transmission (E4OD) that as well.

There is very little aftermarket support for this vintage of Speed Density based computer system. You would have to contact the manufacturer previously listed to see if your stock computer is supported, but highly doubtful.

In the big scheme of things you would need to most likely have to convert your truck from Speed Density to MAF with a computer supported by the aftermarket if you plan on any engine upgrades beyond a mild or heads or intake or headers. Combining more than one or two of those would with the existing computer will result in very little gains and most likely negative bang for the buck.