Check engine light with codes P2104 and P2112?

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

Can you help me with these codes?

P2104
P2112
See image!
Thanks!
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Tuesday, January 24th, 2023 AT 2:42 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 107,645 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.
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Tuesday, January 24th, 2023 AT 3:34 PM
Tiny
OREO101
  • MEMBER
  • 79 POSTS
Hi, thanks.
I am going through these steps.
Like you said, it may be 1 of the first few!
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Wednesday, February 8th, 2023 AT 4:12 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 107,645 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
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Thursday, February 9th, 2023 AT 5:07 PM

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