OBD II COMPUTER CODE P0442

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OBD II COMPUTER CODE P0442 - 4/27/2008 12:21:53 PM    SRL S10   Posts: 9 Joined: 4/26/2008 Status: offline Check engine light came on - had code checked at Auto Zone. It's P0442 ( Evaporative Emission System ). The guy at Auto Zone told me that it was a bad gas cap. New gas cap didn't work - anyone have any suggestions before I go to the dealer ? Post #: 1

RE: OBD II COMPUTER CODE P0442 - 4/27/2008 3:13:47 PM    EuroGoldLS Posts: 1535 Joined: 7/12/2007 From: Princeton, NC, USA Status: offline Yeah thats the code that trips when you don't tighten the gas cap properly or else the gasket in the Gas cap is broken, causing the fuel tank vacuum to fall below a certain negative psi reading. Did the guy at autozone clear the code or just read it? _____________________________ VOTE for Ride Of The Month!!! PM me for a custom sig or avatar! (in reply to SRL S10) Post #: 2

RE: OBD II COMPUTER CODE P0442 - 4/27/2008 4:15:30 PM    SRL S10   Posts: 9 Joined: 4/26/2008 Status: offline He just read the code - didn't clear it. I tried to clear it myself by first pulling fuse to computer & then disconnecting the battery - I can't get code to clear (in reply to EuroGoldLS) Post #: 3

RE: OBD II COMPUTER CODE P0442 - 4/27/2008 4:17:13 PM    SRL S10   Posts: 9 Joined: 4/26/2008 Status: offline he just read the code - didn't clear it. I tried pulling fuse to computer and disconnecting battery - I can't get code to clear (in reply to EuroGoldLS) Post #: 4

RE: OBD II COMPUTER CODE P0442 - 4/27/2008 4:52:18 PM    shawnvw   Posts: 590 Joined: 1/18/2008 Status: offline The problem could be anything pertaining to sealing the evap system. Gas cap, Filler tube, fuel sender gasket, crack in the evap hoses, evap test port, evap canister, or canister purge valve. This code sets when the system is not able to hold a vacuum for a specified amount of time. (in reply to SRL S10) Post #: 5

RE: OBD II COMPUTER CODE P0442 - 4/27/2008 5:53:29 PM    EuroGoldLS Posts: 1535 Joined: 7/12/2007 From: Princeton, NC, USA Status: offline You have to get it cleared when you get it fixed. _____________________________ VOTE for Ride Of The Month!!! PM me for a custom sig or avatar! (in reply to shawnvw) Post #: 6

RE: OBD II COMPUTER CODE P0442 - 4/28/2008 9:49:41 AM    74chevy4life   Posts: 50 Joined: 1/1/2008 Status: offline if you fix the problem the computer will clear the code itself but it may take some time like 50-100 miles (in reply to EuroGoldLS) Post #: 7

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