P0401

Tiny
RICHARDSBB
  • MEMBER
  • 1998 CHEVROLET MONTE CARLO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 185,644 MILES
1998 chevrolet monte carlo p0401
Thursday, March 24th, 2011 AT 7:34 PM

7 Replies

Tiny
RICHARDSBB
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How do I get this code and light to go away would the map sensor have anything to do with it?
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Thursday, March 24th, 2011 AT 7:35 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Code for insufficiant EGR flow remove EGR clean and cleean passage way in intake
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Thursday, March 24th, 2011 AT 7:46 PM
Tiny
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I cleaned intake manifold and egr ports, replaced egr valve twice
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Thursday, March 24th, 2011 AT 8:18 PM
Tiny
RASMATAZ
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If its vacuum operated-check the EGR functions with a vacuum pump- If it keeps coming back could be a wiring problem to it or the computer itself
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Thursday, March 24th, 2011 AT 8:31 PM
Tiny
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Ok what about the sensor beside the intake manifold the tpfe or tpaf sensor something like that would that enterfere with it?
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Thursday, March 24th, 2011 AT 8:36 PM
Tiny
RASMATAZ
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Could be if it functions just like the fords DPFE sensor
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Thursday, March 24th, 2011 AT 10:15 PM
Tiny
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Yea I figured out that the part is called the map sensor 40 bucks not too bad I hope its that
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Thursday, March 24th, 2011 AT 10:19 PM

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