Check engine light with codes P2104 and P2112?

2005 FORD EXPEDITION
200,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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OREO101
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  • 103 POSTS
Hi,

Can you help me with these codes?

P2104
P2112
See image!
Thanks!
Jan 24, 2023 at 2:42 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Hi,

Code P2104 is an informational code indicating a forced idle. When this code shows up, the manual indicates to diagnose other codes before focusing on it. See pic 1 below.

Coder P2112 indicates the throttle plate is at an angle further than commanded by the PCM. This leads me to a list of diagnostics specific to the P2112 which I have attached below.

The diagnostics include 30 tests, so they are somewhat extensive. However, you may find the issue within the first few tests.

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.
Jan 24, 2023 at 3:34 PM
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OREO101
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Hi, thanks.
I am going through these steps.
Like you said, it may be 1 of the first few!
Feb 8, 2023 at 4:12 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
You are very welcome. Take your time and hopefully, it will be something simple. Let me know if you have any success or if I can help in any way.

Take care,

Joe
Feb 9, 2023 at 5:07 PM