p0441 code - JeepForum.com

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post #1 of 2 Old 08-02-2009, 08:17 PM Thread Starter
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1996 ZJ 
Join Date: May 2008
Location: Detroit
Posts: 941
p0441 code

after takin the 96 zj out muddin i got a p0441 code, checked it and it said. Evaporative Emission Control System Incorrect Purge Flow.
any ideas?

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post #2 of 2 Old 08-03-2009, 02:51 PM
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1999 WJ 
Join Date: Jun 2008
Location: Virginia
Posts: 78
Your emissions system isn't doing it's job. It may or may not have anything to do with mudding, or age of the vehicle, or something else. I get that code regularly and if I don't get it fixed by Nov I'll fail the emissions test.

First step I was told is to make sure fuel cap is on correctly, then clear the code. Did that, code came back in a few weeks. Next replaced the fuel cap, cleared the code, came back in a few weeks. Checked all the vacuum hoses and fittings, replaced one that seemed pretty old, cleared the code, came back in a few weeks.

Now a cleared code will come back in just a few days, so it's getting worse. I may next replace the evac vacuum pump that sits behind the driver side headlight.

But you might want to start with fuel cap and checking all your evap system hoses.

Frank "it-takes-a-village-to-wheel-a-WJ"
McLean, VA
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