Engine sputters when apply full throttle, then wrench light comes on?

This sounds like a typical engine misfire I would do a full tune up and replace all of the spark plugs here is a video to show you how.

Spark Plug Type

Spark Plug .................... AGSF-34N

https://youtu.be/E6oier7agkY

If you just want to find the cylinder that is misfiring, you can scan the computer and it will tell you which one is having a problem.

You can get a code scanner from Amazon for about $20.00.

Here is a guide/video to show you how:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is a scanner link:

https://amzn.to/3Qi1SS6

Also, you should service the throttle bore as well.

https://www.2carpros.com/articles/throttle-actuator-service

and

https://youtu.be/6fWYjfU9UV8

Please let us know what happens.

Nice work, so we had a problem with a truck like this and it turned out the spark plugs were counterfeit ones from China. I would recheck the spark plugs for cracks and to make sure they are genuine motor craft plugs, if you got them from Amazon, they are probably fake. Here is a video:

https://youtu.be/OpDJNDb6b9A

Spark Plug .................... AGSF-34N

Let me know.

Okay, here are the fuel pump wiring diagrams but they are included in the engine wiring, so I have to get you the complete set. You can save this post in your favorites, so you have them for reference later on if needed.

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