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CEL - Codes P043E, P043F, P2401, P2402, & P2419.

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CEL - Codes P043E, P043F, P2401, P2402, & P2419.

Old 11-10-2013, 08:45 PM
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Join Date: Sep 2013
Location: Peoria, Arizona
Posts: 18

Waking up an old thread.. And this post is most helpful. I like the photo's.
I first would like to say THANKS for posting detailed photo's.

And now for my EVAP lights that came on, VCS/TRAC/Chk Eng Lights all
came on as others have stated in this thread.. and about 5 Codes came up.
Unfortunately I did not write them down, but know they all referred to the
EVAP emission BS

I just bought our 2006 Scion xB via Ebay. The vehicle came from Florida
and considering all the rain/storms they get there I can understand why
the light(s) may have come on. However, I live in Arizona (aka HELL) where
it's dry for the most part. Upon receiving the vehicle there were no problems.
However, after passing the emissions test AT THE STATION, the light came
on just as I was leaving.

My first Question is.. could the pressure test have blown something out, like a
hose or something like it? I replaced the gap cap to rule it out and reset the
computer by disconnecting the negative battery terminal for 5+ minutes.
Needless to say, I've performed the reset a few times now and still the same.

I pulled the canister out from underneath the rear of the vehicle (bad place)
and pulled the valve body off (the actual part that the wire/computer plugs into)
and I saw a small rust color streak running down the inside of the plastic,
However, the unit was/is completely dry (canister is dry too).

I'm wondering can I just replace the valve/plug-in part, or am I SOL and
do I have to buy the entire canister?
I pulled the part numbers off the side of the valve body.. there are two..
First one is a Toyota number; 90910-14002
Second one is a Denso number; 082100-0020
There is another number on the tube side; ">PBT-G30<". I'm not sure what
that is for.

Any more continued help would be greatful.. OR maybe someone is having
the same problem too.


Originally Posted by thayer View Post
So the same error codes popped up on me again after fixing the problem ~2

When I went to do the install, I tried to follow the manual to troubleshoot the pump/canister unit. I did not have a vacuum source, only a compressed air source, so I only went through the positive pressure tests. The pump/canister unit passed all those tests.

When I went to disconnect the pump from the canister, I could finally see that the canister media was soaked in water. Pump looks OK. Canister media port (white hole towards top with part of the peace symbol) was wet.

The install had no surprises, codes went away after the installation of the new parts. I can conclude that water is the cause of this failure, not gasoline or any other liquid getting into the canister. I don't know the exact functional process of this part of the
emissions system, but I think water is getting in, soaking the media, and creating a blockage.

I don't know exactly how the water is getting into the canister. If the aluminum pipe by the filler neck is the air input port for the canister, I can see water coming through the gas filler neck door and then seeping through/around the filler neck components to get into the canister. During my install, I used a gasket sealant to assembled the 2 halves of the filler neck plastic pieces and then used more to seal that assemble to the actually gasoline filler neck. My goal was to get the air entry to only come through that snorkel looking thing on the new filler neck part.

I kept my old canister and pump. If the codes come up again, I'll try re-installing the old parts since to see if they work since the canister should have dried out by then.

Last edited by MR_LUV; 03-03-2018 at 12:03 PM. Reason: typo
AZUMS is offline  
Old 01-09-2014, 07:34 PM
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Location: Belleville, IL
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I'm following as well, having the same issue.
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Old 04-03-2016, 06:13 PM
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Join Date: May 2015
Posts: 6

After spending hours searching this forum and others regarding the charcoal canister replacement, I'm finally posting as I think I have to give in and shell out for this repair. sigh.
It sounds to me, from this thread and another (https://www.scionlife.com/forums/sci...anister-57805/) that this is a known and sometimes recurring - and maddening - issue.

I got my xA about 2 years ago and the Check Engine Light and related codes popped up pretty soon after purchase. I have to get the vehicle smoged in October and I'm begrudgingly looking into my options around getting rid of that stupid light.
I have found that disconnecting the battery works to get the light off for a couple days but a permanent solution would be nice.

Interestingly, I also found a bunch of information on a RAV4 forum, as this canister was also an issue with the RAV4. that seems to have been resolved by Toyota by Installing a Charcoal Canister SHIELD in all later RAV4 models.
There are also a couple posts peppered in to the Scion threads that mention this shield as a more certain and permanent solution (or as much as there can be one for a vehicle with so many moving parts!) and avoiding making the same repair over and over.

I am guessing, since the xA hasn't been made for a long time, there may not be a part number for this and maybe the dealers that fixed the vehicles of the folks that mentioned shields on this forum just improvised something.
Those members haven't been active in years though I have sent them PMs.

I'm curious if anyone has any information on whether i can order a shield that will actually fit over the xA canister, or any ideas on how to fabricate one (before Toyota started making them, some enterprising RAV4 owners did that!).
It just doesn't make sense to me to install a new canister if there is a good chance it will fail. I'd rather figure out the shield thing. maybe I can just duct tape a ziplock bag around the stupid thing to keep the water out, I dunno.
I see that the new Scion iA has a part listed on it's warranty that might be compatible - a "fuel tank inlet shield" - though I know little about the iA and how similar it might be to the xA.


Last edited by MR_LUV; 10-03-2018 at 04:13 PM. Reason: typo
smartestartist is offline  
Old 10-03-2018, 03:08 PM
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Default my fix

For anyone interested here was my was of ghetto fixing it. Thats just a tube from a bicycle tire with a zip tie. I'm assuming no water can splash up that far. inch and half radiator hose or something similar probably would work to.
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Old 11-06-2018, 01:47 PM
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Default Evaporative Emmission Codes

Thanks to everyone who contributed to this thread. I have an 08 Scion tC and I've been dealing with my CEL for quite some time now. I'm trying to pinpoint the cause of my DTC. I recently replaced both my upstream and downstream O2 sensors, multiple times mind you, and just as I'm about to have my car inspected my CEL comes back on. Now I'm getting codes for my Evap System. P043E, P043F, P2401, P2402, and P2419. I'm guessing it's because it rained yesterday and today? I just spent $174 on my upstream sensor and can't afford to replace anything else at this time. I cleared my codes again, hoping my CEL will stay off long enough to get it inspected this afternoon.

Any input would be much appreciated.

Last edited by MR_LUV; 11-06-2018 at 03:08 PM.
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