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EGR code P0401

Tiny
TOBY DALE STICKNEY
  • MEMBER
  • 2001 PONTIAC BONNEVILLE
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 218,000 MILES
I keep getting this p0401 code. I changed out the EGR valve made sure the EGR tubes were clean and changed out the map sensor. I am at my wits end. Can you please help?
Friday, January 19th, 2018 AT 6:13 PM

3 Replies

Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
Attached is ALLData's information on the problem. It details how the system works and what to check regarding that code. So look through it and check the various potential problems, and see what you can find. Good luck and keep us posted.
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Friday, January 19th, 2018 AT 7:09 PM
Tiny
TOBY DALE STICKNEY
  • MEMBER
  • 4 POSTS
All this helped thanks the engine light is off.
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Thursday, February 22nd, 2018 AT 1:08 PM
Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
Glad to be a help! Please come back any time.
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Thursday, February 22nd, 2018 AT 6:32 PM

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