GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Service Engine Light On - Reading shows PO 446, PO 440, PO 441

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Old 05-06-13, 02:35 PM
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tenntex
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Default Service Engine Light On - Reading shows PO 446, PO 440, PO 441

I need direction on what to do with my service engine light issue. I know the codes mean the following:

PO - 446 - evaporative emission system vent control circuit
PO - 440 - evaporative emission system
PO - 441 - evaporative emission system incorrect purge flow

Ideally, I would like to repair this myself if its relatively easy instead of sending it off to a dealership or expensive mechanic. Does anybody have thoughts on what the issue may be?
Old 05-06-13, 02:51 PM
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Blanco
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I don't mean this sarcastically, but did you try searching?? Finding what you seek is pretty easy on this site.

As a matter of fact, if you look near the bottom of the second page of this forum, I think you'll find all your answers, with pics, even!

Folks around here that ask help of others, but don't try and help themselves will usually get flamed pretty good *cough* Brian *cough*.

But since you're new, I'll give you the benefit of the doubt. BTW, Welcome to ClubLexus!!
Old 05-06-13, 05:19 PM
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2GSKaizen
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Any codes that deal with evaporative emissions stuff, i always spend the $10-30 dollars and get a new gas cap. disconnect the battery to clear the ecu and see if the CEL comes back on. If it does, it is most likely a pinhole sized leak in one of the vacuum lines running between the intake manifold, the charcoal canister, and the gas tank.
Old 05-07-13, 07:39 AM
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sakataj
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Originally Posted by Blanco
Folks around here that ask help of others, but don't try and help themselves will usually get flamed pretty good *cough* Brian *cough*.
i wasnt even gonna respond Michael,I don't even bother anymore Micheal....i have taken to not posting as it is......especially since i'm officially leaving the 2nd gen gs club as it is.


OP where in TN are you?
Old 05-07-13, 07:48 AM
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Blanco
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Originally Posted by sakataj
i wasnt even gonna respond Michael,I don't even bother anymore Micheal....i have taken to not posting as it is......especially since i'm officially leaving the 2nd gen gs club as it is.


OP where in TN are you?

Where you headed? Sell your 2GS?
Old 05-07-13, 08:18 AM
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sakataj
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Originally Posted by Blanco
Where you headed? Sell your 2GS?
yup....im installing new tie rods (since i fubared another one of FIGS) and new balljoints today than a new passenger front actuator,rear knuckle bushings and some minor other maintenance than she is going to paint and being sold.
Old 05-07-13, 08:22 AM
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Blanco
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LS in your future?
Old 05-07-13, 08:49 AM
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sakataj
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Originally Posted by Blanco
LS in your future?
havent decided yet....im looking at a supercharged S2k though. actually in your neck of the woods Aberdeen Texas but if i dont get a go-cart on steroids i will probably get my LS460
Old 05-24-13, 09:59 AM
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B4TM4N
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I replaced the sparkplugs and valve cover gaskets on my car about 2 weeks ago and had the Check engine light come on about 20 miles later.... I thought I had checked all the hoses... bought a new gas cap, reset the light and again, it came on 50 miles later.
Well, I started searching google and came to the SC430 section... They had a post about the EVAP hose... Check this out.. my hose was disconnected!
Old 05-24-13, 10:00 AM
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B4TM4N
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Its infront of the driver's side, lower than the air intake chamber, close to the firewall
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