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Check engine light on and code P2138

Tiny
STARLORD1976
  • MEMBER
  • 2008 CHEVROLET IMPALA
  • 6 CYL
  • AUTOMATIC
  • 150,000 MILES
What is the problem and how do I fix it?
Sunday, August 16th, 2020 AT 1:38 PM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

The most common cause the the pedal sensor on the fuel pedal. It is a simple fix and the part is available from your local parts store.

Roy

1. Remove the left instrument panel (I/P) sound insulator.
2. Disconnect the accelerator pedal position (APP) sensor electrical connector (1).

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3. Remove the APP sensor assembly bolts.
4. Remove the APP sensor assembly from the vehicle.
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Sunday, August 16th, 2020 AT 1:53 PM
Tiny
STARLORD1976
  • MEMBER
  • 173 POSTS
Is this the part here in pic. This is all that shows up?
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Sunday, August 16th, 2020 AT 2:24 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
That is correct. That is the part.

Roy
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Sunday, August 16th, 2020 AT 2:41 PM
Tiny
STARLORD1976
  • MEMBER
  • 173 POSTS
I erased the code on it and the engine light went off and hasn’t came back on yet, is that a good thing?
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Sunday, August 16th, 2020 AT 8:16 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Erasing does nothing. The code will return at some point. The issue was there and is still there.

It is a matter of time before it comes back.

Roy
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Monday, August 17th, 2020 AT 3:36 AM

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