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Old 17 Sep 2010, 03:46 pm
mjb457's Avatar
Fanatic Cruiser
Join Date: Oct 2005
Location: Bucks County,PA. USA
Posts: 953
Default CODE P0441 AGAIN

Ok my non turbo 2003 threw a check engine light today.( it rained here heavy last night-PT was outside( 2 months ago-in July 13th same code) 2500 mile ago.....( I was driving in heavy rain when it came on) I did change gas cap since July... is it a rain issue? something shorting & getting wet..this time I drove about 15miles after the rain-the next day so it was dry out. I eset light by disconnecting negative battery terminal for 10 minutes..any ideas,,I dont want to waste time & money on unneeded parts.85K miles now.Thanks MJB
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Old 29 Sep 2010, 03:51 am
chris15's Avatar
Senior Cruiser
Join Date: Jan 2008
Location: Tampa, Florida
Posts: 1,035
Default Re: CODE P0441 AGAIN

Service manual states:

'P0441 - Evap Purge Flow Monitor - Insufficient or excessive vapor flow detected during evaporative emission system operation.'

99% of the time, this is a result of a loose gas cap after filling. It will reset after you clear the codes. If it keeps coming back and it isn't the cap, it's probably an issue with a leak detection pump and would need to be replaced.
2003 GT (6262, the works)
2001 PT MTX-Swapped/Turbo

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Old 01 Oct 2010, 02:32 pm
Cool Cruiser
Join Date: Nov 2007
Posts: 394
Default Re: CODE P0441 AGAIN

People can tell me I'm crazy all they want. I think somethings getting wet.

I have chronic P0441 disease. It's not the gas cap. I swear its my windshield washer nozzles dribbling on the PCM.

Another thing to note - TS Nicole came through here and rained for a good 36 hours - Prior to this I haven't used my washers for 2 weeks (no rain). WIthin 5 minutes of using them I got a P0441 at the light.
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Old 01 Oct 2010, 03:57 pm
Freezinghot's Avatar
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Join Date: Jun 2010
Location: Fort Worth, Tx
Posts: 547
Default Re: CODE P0441 AGAIN

Dont use them then
04 graphite(vroom!) N/A Limited 110,000 miles -original owner. Custom short ram intake ( CGS motor-sport pipe, specter open-end air filter, specter breathing hose),OEM spoiler, Pioneer receiver ,10" bazooka sub,Blue LED interior lighting, Bosch +4 plugs and Accel super stock 8mm universal plug wires.
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