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Chevrolet
Monte Carlo
Trouble Codes
P Codes (Powertrain)
P0400 - P0499
P0401
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P0401
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
RICHARDSBB
MEMBER
5 POSTS
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
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
RICHARDSBB
MEMBER
5 POSTS
I cleaned intake manifold and egr ports, replaced egr valve twice
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Thursday, March 24th, 2011 AT 8:18 PM
RASMATAZ
MECHANIC
75,992 POSTS
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
RICHARDSBB
MEMBER
5 POSTS
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
RASMATAZ
MECHANIC
75,992 POSTS
Could be if it functions just like the fords DPFE sensor
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Thursday, March 24th, 2011 AT 10:15 PM
RICHARDSBB
MEMBER
5 POSTS
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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