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Code P0443, this code will not stay off and I am getting codes for the EGR and all my oxygen sensors now as well?

Tiny
MEMERSON56585353
  • MEMBER
  • 2006 FORD EXPLORER
  • 4.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 162,025 MILES
I have changed everything that I could change on the evap system and the P0443 code won't stay off and I am getting codes for the EGR and all my oxygen sensors now as well. I have changed the purge solenoid and the cannister valve and the EGR valve. I have tried to clear it out, but it keeps coming back on.
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Friday, September 8th, 2023 AT 3:09 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,940 POSTS
Yep, this happens when the PCM goes out, here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/how-to-replace-a-vehicles-main-engine-computer-pcm-ecm-ecu

Check out the images (below). Please let us know if you need anything else to get the problem fixed. I don't think this PCM needs to be programmed.
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Saturday, September 9th, 2023 AT 12:53 PM

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