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| code 0441 HELP http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=49066 |
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| Author: | Cali KJ [ Fri Jan 08, 2010 10:44 pm ] |
| Post subject: | code 0441 HELP |
Have a code 0441.  Evaporative emission (EVAP) system – incorrect flow detected What to check? New cap from auto parts store and hasn't seemed to work.  Any and all help would be greatly appreciated. EDIT: I have no idea why i put it in General Discussion??? I did find this http://www.obd-codes.com/p0441 But honestly i know nothing about the evap system. Where is the purge solenoid and vacuum switch located? |
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| Author: | JeepinJarhead03 [ Sat Jan 09, 2010 1:06 am ] |
| Post subject: | Re: code 0441 HELP |
easiest thing to check make sure ya got ya gas cap on there's also breather hoses between the top of the gas tank and the filler that seem to start to swell and dry rot after about 4 years and are pretty much toast after 8 those two things are very typical of the evap system whether it's specific to that code, i have no idea purge sel is on the drivers fender to the front of the battery if it's where mine is, seems to be a very typical location for them , wranglers was in same spot it's roundish, about the size of a typical table pepper shaker has a little cross ontop of it with a pin hole lookin thing, makes constant clicking when the engines running |
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| Author: | harsh20 [ Sat Jan 09, 2010 1:12 am ] |
| Post subject: | Re: code 0441 HELP |
the solenoid is beside of the battery. trace the rubber hoses back to the gas tank. it could be a cracked hose rather than the solenoid itself. normally a cracked hose gives you a po442. by close attention to the small twin hoses connected to the firewall. I find my leaks in the hoses in the rear just above the rearend. |
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| Author: | JeepinJarhead03 [ Sat Jan 09, 2010 1:24 am ] |
| Post subject: | Re: code 0441 HELP |
extend the rear end breather while ya at it  hehe
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| Author: | Cali KJ [ Sat Jan 09, 2010 2:08 am ] |
| Post subject: | Re: code 0441 HELP |
Yeah i'll need to do some serious investigating tomorrow. Been going on for awhile now and now it NEEDS to be taken care of. darn CA emissions!!! I came across this to so i'll be looking in to it http://www.jeepkj.com/forum/showthread.php?t=35504. Is there any way to test the purge sel.?
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| Author: | JeepinJarhead03 [ Sat Jan 09, 2010 2:14 am ] |
| Post subject: | Re: code 0441 HELP |
you can take it off and use jumpers positive and ground, it should open when you touch the positive and close when you remove it, it'll make a click sound too you can actually see the dooda go down and come back up |
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| Author: | Cali KJ [ Sat Jan 09, 2010 2:32 am ] |
| Post subject: | Re: code 0441 HELP |
Really that simple?  Dang that would be really nice if thats all it is.
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| Author: | JeepinJarhead03 [ Sat Jan 09, 2010 2:45 am ] |
| Post subject: | Re: code 0441 HELP |
evap issues are rarely ever 'that' simple  but it's somewhere to start half the time it mysteriously goes away after the next time someone fills up with gas part of that leak detection system detects the pressure inside the gas tank, if the cap isn't venting properly, it'll throw a code |
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| Author: | Cali KJ [ Sat Jan 09, 2010 2:54 am ] |
| Post subject: | Re: code 0441 HELP |
JeepinJarhead03 wrote: evap issues are rarely ever 'that' simple but it's somewhere to start half the time it mysteriously goes away after the next time someone fills up with gas part of that leak detection system detects the pressure inside the gas tank, if the cap isn't venting properly, it'll throw a code LOL i meant checking the purge sel. But yes some where to start for sure. I'll post up more when i figure this dang thing out. All other input is always welcome.Thanks! |
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| Author: | JeepinJarhead03 [ Sat Jan 09, 2010 3:05 am ] |
| Post subject: | Re: code 0441 HELP |
ahh  yeah, it's easy enough, it basically acts like a speaker when you stick a hot wire to it and the speaker sucks in |
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| Author: | Cali KJ [ Sat Jan 09, 2010 6:53 pm ] |
| Post subject: | Re: code 0441 HELP |
Ok as of now i have NO active codes. Have checked with a DTS advanced diagnostics code reader. I do have a question about active drive cycle for the KJ. Meaning if i have cleared the codes, how many miles of diving before it the ODBII system has run all its checks? As far as what i did.. Checked all hoses, Unplugged purge solenoid and checked connection wires. Unplugged fuel pump connection (i think thats what it was?) Center front side of gas tank? There was lots of dry dirt in plug housing. Cleaned with comp air. All looks to be ok. Ran code reader and no codes.. Thanks for the help guys.
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| Author: | harsh20 [ Sat Jan 09, 2010 8:41 pm ] |
| Post subject: | Re: code 0441 HELP |
Cali KJ wrote: Ok as of now i have NO active codes. Have checked with a DTS advanced diagnostics code reader. I do have a question about active drive cycle for the KJ. Meaning if i have cleared the codes, how many miles of diving before it the ODBII system has run all its checks? As far as what i did.. Checked all hoses, Unplugged purge solenoid and checked connection wires. Unplugged fuel pump connection (i think thats what it was?) Center front side of gas tank? There was lots of dry dirt in plug housing. Cleaned with comp air. All looks to be ok. Ran code reader and no codes.. Thanks for the help guys.if in fact you have a small leak still, it will so up again in about 50 miles. normally during an acceleration. best of luck. |
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