EEC Wiring diagram

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Sep 6, 2011 | 09:33 AM

RIKIL

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EEC Wiring diagram

This wiring diagram I have states it is for a 88-91 EEC system. Not too long ago I upgraded the SD system in my 92 F150, 351W to a MASS Air system. It was a kit I purchased that uses a factory Ford computer as a replacement. Would anyone know if this diagram is what I should be looking at or is there another that is more accurate?

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Apr 18, 2023 | 09:43 PM

femustang

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I believe that is for the mustang.

I just bought the Ford service manual electrical diagrams for 91 trucks and it shows the injectors being fired in banks of four.

Apr 18, 2023 | 10:31 PM

wwhite

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tmoss I believe created that diagram, I'd say its accurate for what it is for.
Since you have a modified 1992 SD harness with a MAF harness, your going to need to know what computer you have.
Any part numbers on your EEC?
Any issues your trying to address?

Apr 19, 2023 | 08:30 AM

Conanski

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From: Ottawa, Ontario

Quote:

Originally Posted by RIKIL

, Yes that is the correct diagram for the kit, it uses a Mustang computer.

Apr 19, 2023 | 09:15 PM

femustang

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Just in case anyone needs this or any of the wiring diagrams for 91 ford trucks I just bought a complete set. They were a pain to find so, if I can help any other ford folks I will.

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91 F Series Fuel Charge 5.0 5.8.pdf (439.9 KB, 1183 views)

Nov 24, 2025 | 03:36 PM

AOP2024

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Desperate need of wiring diagrams

Quote:

Originally Posted by femustang

Just in case anyone needs this or any of the wiring diagrams for 91 ford trucks I just bought a complete set. They were a pain to find so, if I can help any other ford folks I will.

I am in need of some diagrams for a 1990-91 ford 460. I need the computer wiring diagram along with the firewall plug wiring diagram if possible. Thank you!