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04-20-2010, 11:16 AM
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#1
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Jeeper
Join Date: Feb 2009
Location: Gray, LA
Posts: 167
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Check engine light w/ error code P0441, anyone???
Engine light came on today and was ironically passing Advanced Auto so I stopped and they ran the code.
P0441, EVAP Emission Control System Purge Flow Fault.
Anyone have a good idea where I should start to fix this? Thanks 
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04-20-2010, 01:03 PM
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#2
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Jeeper
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,010
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__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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04-20-2010, 04:05 PM
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#3
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Jeeper
Join Date: Feb 2009
Location: Gray, LA
Posts: 167
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Did a little researching and discovered that a loose/bad gas cap is almost always responsible for this code (as you suggested ) so gas cap has been replaced. 20 miles since then and check engine light is still on, but I'm hopeful in the next few days it'll go out. Come the weekend, if it hasn't gone out I'm gonna disconnect the battery overnight (to reset the 'puter), see what happens then.
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04-20-2010, 04:07 PM
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#4
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Drives by Braille
WF Supporting Member
Join Date: Dec 2006
Location: For-8-Oh!
Posts: 13,572
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The light will usually stay on for ~40 iginition cycles unless reset with a programmer. You can swing by a Checker/Autozone and have them erase the code for you.
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04-20-2010, 04:07 PM
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#5
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Jeeper
WF Supporting Member
Join Date: Aug 2009
Location: Chicago
Posts: 562
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Quote:
Originally Posted by DontTellMeAboutCajun
Did a little researching and discovered that a loose/bad gas cap is almost always responsible for this code (as you suggested ) so gas cap has been replaced. 20 miles since then and check engine light is still on, but I'm hopeful in the next few days it'll go out. Come the weekend, if it hasn't gone out I'm gonna disconnect the battery overnight (to reset the 'puter), see what happens then. |
Clearing the codes isn't a bad idea. If the problem is still there it will definitely light back up, and if not you are good to go!
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04-20-2010, 07:23 PM
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#6
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Jeeper
Join Date: Feb 2009
Location: Gray, LA
Posts: 167
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Quote:
Originally Posted by AzTJ
The light will usually stay on for ~40 iginition cycles unless reset with a programmer. You can swing by a Checker/Autozone and have them erase the code for you.
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So, leaving the battery disconnected overnight won't reset the computer/clear the codes?
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04-20-2010, 09:24 PM
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#7
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Drives by Braille
WF Supporting Member
Join Date: Dec 2006
Location: For-8-Oh!
Posts: 13,572
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It will, but you'll have to re-program your clock and radio stations. 
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04-20-2010, 10:21 PM
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#8
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Jeeper
Join Date: Feb 2009
Location: Gray, LA
Posts: 167
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Fine by me, thanks!
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01-22-2013, 07:07 PM
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#9
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Jeeper
Join Date: Jan 2013
Location: East Tn
Posts: 63
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I know this was 2 years ago but what was the outcome mine just threw the codes bus 60 when I did the odemeter check and p 0441 when I did the on off on off
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01-22-2013, 07:13 PM
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#10
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Jeeper
Join Date: May 2010
Location: San Diego
Posts: 1,630
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That code is saying that the engine is not getting more fuel when it opens the purge valve to purge the charcoal canister. The gas cap code is a small or large evap leak code
Quote:
Originally Posted by AzTJ
The light will usually stay on for ~40 iginition cycles unless reset with a programmer. You can swing by a Checker/Autozone and have them erase the code for you.
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No it wont. That is totally crazy. It runs the tests pretty much every time you drive it. Once it passes, it will reset the code.
Quote:
Originally Posted by DontTellMeAboutCajun
So, leaving the battery disconnected overnight won't reset the computer/clear the codes?
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Unplugging the battery for >30 sec will reset everything,
__________________
my 06 LJ rubicon
2.5" SL, 1" BL, DIY highline, 35s with double beadlocks.
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01-22-2013, 07:14 PM
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#11
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Jeeper
Join Date: Jan 2013
Location: East Tn
Posts: 63
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01-22-2013, 11:15 PM
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#12
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Jeeper
Join Date: Jan 2013
Location: East Tn
Posts: 63
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Update for any concerned parties finally got a break at work popped the hood and a vacuum line was off
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01-22-2013, 11:49 PM
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#13
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Jeeper
Join Date: Oct 2012
Location: Coumbus, Ohio
Posts: 42
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Quote:
Originally Posted by AzTJ
The light will usually stay on for ~40 iginition cycles unless reset with a programmer. You can swing by a Checker/Autozone and have them erase the code for you.
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Must be nice to have an AutoZone that will reset them for you! Every time I go and ask, they always tell me they aren't allowed and feed a line of crap about "liability". :headshake:
Battery disconnect and radio reprogram for me every time!
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