Wiring Diagram needed for a 2018 gt engine harness

[Jayeatspizza]

I had a rat problem, and it looks like the rat chewed some of the engine wires.

So cylinders 3 and 6 are misfiring, and the code it's giving me is "open circuit"

So I'm trying to find the Pin diagram for the cable that plugs into the ECM and see if those pins talk to the injectors and check to see if they're giving the injectors the proper voltage.

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[NightmareMoon]

You can sign up for a short (3 day?) pass for the Motorcraft Service online and get full access to diagrams. Its pretty cheap, iirc like $30 and you have a few days to save off what you need.

Helped me sort out wiring and connector pins in the engine harness and fuel pumps to do a coyote to voodoo swap on a ‘16. Its got all the connector pins, wire colors, etc for the engine bay which you need. Not too hard to read, I’m not that experieced and I was able to figure it out.

 

[John S]

Good luck, a coworker had rodent damage on his Fusion wiring and it turned out to be more than fixing a few localized wires, so by the time he needed replacement harnesses (outrageously priced) it ended up being an insurance claim.

 

[Jayeatspizza]

thanks for the help chode

 

[Skye]

Attached are a few files.

Harness images, front and rear, supporting the Gen3 5L engine.

General schematics, displaying the injectors and coils.

As mentioned, the Ford site is your best bet:

https://www.motorcraftservice.com/Purchase/ViewProduct

Three day access for $30. They will have hundreds of schematics for the entire car. Other references include t-shooting guides, the same ones the techs use at the dealer. All these are available for download. Select the page, print to file and save.

 

[Skye]

Some PCM pinout diagrams.

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