OBD II COMPUTER CODE P0442 (Full Version)

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OBD II COMPUTER CODE P0442

  

SRL S10 -> OBD II COMPUTER CODE P0442 (4/27/2008 12:21:53 PM)

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 ?

  
EuroGoldLS -> RE: OBD II COMPUTER CODE P0442 (4/27/2008 3:13:47 PM)

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?

SRL S10 -> RE: OBD II COMPUTER CODE P0442 (4/27/2008 4:15:30 PM)

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

SRL S10 -> RE: OBD II COMPUTER CODE P0442 (4/27/2008 4:17:13 PM)

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

shawnvw -> RE: OBD II COMPUTER CODE P0442 (4/27/2008 4:52:18 PM)

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.

EuroGoldLS -> RE: OBD II COMPUTER CODE P0442 (4/27/2008 5:53:29 PM)

You have to get it cleared when you get it fixed.

74chevy4life -> RE: OBD II COMPUTER CODE P0442 (4/28/2008 9:49:41 AM)

if you fix the problem the computer will clear the code itself but it may take some time like 50-100 miles

  

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