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billt01
New User
Apr 13, 2009, 7:14 AM
Post #1 of 2
(4006 views)
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fixing odbc codes
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I received the following codes in a failed inspection does any one know what i need to do to repair them? I have a 2001 chevy s10 pickup 4x4 crew cab I have 60 days to get them fixed.
P0101 Mass or Volume Air Flow Circuit Range/Performance Problem
P0440 Evaporative Emission Control System Malfunction
(This post was edited by billt01 on Apr 13, 2009, 7:14 AM)
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Loren Champlain Sr
Veteran
/ Moderator
Apr 13, 2009, 2:00 PM
Post #2 of 2
(3999 views)
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Re: fixing odbc codes
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Code P0440 is for the EVAP system and needs to be address prior to the P0101 (MAF sensor). The EVAP system checks itself by putting the system into a vacuum, then looks to see if it holds vacuum. If it doesn't, then it sets this code. It could be a leak in the system, a solenoid problem, ect. This may or may not correct the MAF code, but need to do this, first. As far as the MAF circuit is concerned, the sensor looks for air temp and volume entering the intake. A hose leak after the MAF or a contaminated sensor can cause this code.
Loren
SW Washington
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