Check Engine Lighte/EVAP Problems

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H

hortomb

10 Year
Joined
Jan 20, 2013
Threads
1
Messages
3
Location
Dallas, TX
Hello,

I have a 2004 Land Cruiser and the check engine light recently came on. I had the codes checked and I'm getting P0441, P0446, P0455, and P2418. All seem to be related to the EVAP system. I took it to the dealer and the said I should change out the charcoal canister and the purge valve for about $800. How easy are these to change out myself? I don't do much on my truck other than changing the oil, but would like to save a few bucks if it's not too difficult to do. Also are the parts easy to find?

Thanks,

Mike
 
Did the dealer actually diagnose it and tell you that a new charcoal canister and purge valve would fix the problem. Or did they just say that based upon the codes? Evap leaks can be tough to pin point soley based upon codes. My worry would be spending the money on the part and your own time, just to find out it's something else (maybe something simple, gas cap, seperate valve, etc).

I know on some cars you have to drop the fuel tank in order to change the canister, I'm not sure on a LC. I bet someone here knows!

EDIT: There is a thread on this forum with same code, search P2418. May not be your problem, but sounds easier and cheaper than a Charcoal canister. Good luck.
 
Last edited:
Thanks! I'll search on that code and see what I can find.

Yes, the dealer said they diagnosed the issue to find the exact problem...and I agree, I wouldn't want to spend a lot of time changing out these parts just to find it wasn't the issue.
 
Curious if anyone knows if the P0441 code will reset itself if the problem is only the gas cap. I had this code come up today and replaced the original gas cap with a new OEM. Do I need to have the code cleared to see if this resolved the issue or will it clear itself after driving for awhile (if the gas cap was causing the problem).

Thanks.
 
Bloomer said:
Curious if anyone knows if the P0441 code will reset itself if the problem is only the gas cap. I had this code come up today and replaced the original gas cap with a new OEM. Do I need to have the code cleared to see if this resolved the issue or will it clear itself after driving for awhile (if the gas cap was causing the problem).

Thanks.
Click to expand...

Had some of the same codes replaced my gas cap and cleared the codes. All has been good now for a good while. Codes will not reset you can turn off the check engine light by disconnecting the battery for a few minutes.
Searched 441 and 455 and found them to be common codes on 2006 gas cap:meh:
 
The charcoal canister on a 2004 is tucked up under the spare tire. If you have a bumper/tire carrier, a quick look under there and you'll see it. It looks like a black shoebox. Unfortunately, the valve is part of the system and I don't believe it can be replaced alone. Hence, the $800 bill. Although, that still seems a little high.
 
We were out and about all day today. Codes tripped first thing this morning (441 and 455). Went ahead and had the codes cleared a few hours ago before getting on the road to head home. Drove about 100 miles home and all is good so far.

I still have 3 years left on my Toyota extended service plan so not to concerned about the ultimate culprit (although it's a real pain taking into the dealer since it turns into a full day venture due to distance away). I'm thinking (hoping) I'm in the same boat as @LandCruiserPhil and my issue is resolved by simply replacing the gas cap. Guess time will tell.
 
Probably the gas cap. Actually, I didn't get codes until I installed a new gas cap (OEM) at 150k miles. Took a few resets and cranking down on the cap at refueling before it quit happening.

Paying big bucks for the dealer to throw parts at it is not the way to go.
 
Bump.

My 2001 LX470 w/199k miles had a CEL come on the other day. Mechanic checked/cleared the code and turned off CEL. Code was P0441.

Mechanic said, "Do nothing. See if CEL comes back. If you want, get a new gas cap, go ahead. Yours seems old/dry." Stopped by the dealer on the way home and picked a new gas cap for $35. Probably could have saved money shopping elsewhere, but it was right on my way home. So far, so good. Time will tell...

bpe3
 
Bump number 2.

10 months and 17k miles later, I’m getting the same code. Reset it once a couple days ago. Came right back on. Working on a diagnosis now.

bpe3
 
Same codes on my 04, exhaust is very strong smelling. Ordered a new charcoal canister from McGeorge Toyota in Richmond for $300, replaced it today. Fairly simple install/replacement (minus the stripped 12mm bolt). Cleared the codes, now we'll wait and see. Same strong exhaust smell. Could be from the after market muffler I had put on (not sure).
 
@bpe3 I'm having the same P0441 code. No smell, no notable problems. Just the CEL/code. Already replaced gas cap (toyota oem) two months ago for this but it came back. 2001 LX 470. I was going to replace the vacuum lines all over the canister next and see what happens, but it's well over $450 for the canister on my car. I wish there was just a cheap aftermarket option/retrofit. That's an insane amount of money to throw at a dumb emissions issue.
 
Had the same codes/issues as the OP, replacing gas cap and all three VSV's resolved this for the past 11 months/10k miles. The VSV by the canister tested bad, replaced with the same VSV as near the engine (25860-50100) held in place with a ziptie instead of replacing the canister assembly. Both VSV's in the engine bay tested fine when cold, but codes returned until they were replaced. Vacuum lines look ok, I'll likely replace with silicone lines in the near future. @Pyrenees no idea if the VSV's are interchangeable when the canister is in the engine compartment, but HTH.
 
do you mind sharing how you tested the VSVs? How much did they cost? It's gotta be better than $450+ for something filled with $30 worth of aquarium carbon. I've got the canister-in-the-engine-bay setup.
 
VSV's were $50-60 apiece from McGeorge Toyota. If you have the FSM the test procedure is outlined on SF-46 (canister and on engine) and SF-48 (engine bay away from engine). Briefly, check continuity between terminals (30-36 ohm and 24-30 ohm resistance respectively), check for lack of continuity between each terminal and body, check for actuation when voltage is applied (audible click), and ensure that air flows through when open/closed. There should be no airflow when voltage is applied to the VSV in the engine bay not next to the engine, and airflow when voltage is applied to the VSV's by the engine and canister IIRC. Again, this applied to my 2004 with the canister by the spare tire, but should help get you started. There are several threads in the 80-Series Forum on VSV's testing fine when cold (ambient temp), but being non-functional/sticky when subjected to heat which lead me to replace them all.
 
Pyrenees said:
@bpe3 I'm having the same P0441 code. No smell, no notable problems. Just the CEL/code. Already replaced gas cap (toyota oem) two months ago for this but it came back. 2001 LX 470. I was going to replace the vacuum lines all over the canister next and see what happens, but it's well over $450 for the canister on my car. I wish there was just a cheap aftermarket option/retrofit. That's an insane amount of money to throw at a dumb emissions issue.
Click to expand...

My CEL came on with P0441 code from time to time for a while. Disappeared on its own. Hasn't come back for many months.
 
Refreshing this thread. I have had an EVAP issue for a couple months now. Code 441 and 455. I took it to the dealership and I was told purge valve and charcoal canister needed to be replaced and said there was some dry rot on the hoses (Same dealership told me my squealing brakes was my rusted out parking break and it was just the shims). Wanted $1,700 to fix the whole issue. I went and bought the parts including a new PCV while i was at it and installed them thinking this was over. It keeps coming back. I built a DYI smoke machine in hopes of finding an obvious culprit. But no dice. This is a northeast car i picked up in Mass with a ton of rust which i have been slowly dealing with. Thought it might be my gas tank rusted out, but i couldn't find any smoke when i pumped it into the filler tube. Any suggestions from people who had long time issues? This is a 2006 with 125k in miles.
 
NortheastRust said:
Refreshing this thread. I have had an EVAP issue for a couple months now. Code 441 and 455. I took it to the dealership and I was told purge valve and charcoal canister needed to be replaced and said there was some dry rot on the hoses (Same dealership told me my squealing brakes was my rusted out parking break and it was just the shims). Wanted $1,700 to fix the whole issue. I went and bought the parts including a new PCV while i was at it and installed them thinking this was over. It keeps coming back. I built a DYI smoke machine in hopes of finding an obvious culprit. But no dice. This is a northeast car i picked up in Mass with a ton of rust which i have been slowly dealing with. Thought it might be my gas tank rusted out, but i couldn't find any smoke when i pumped it into the filler tube. Any suggestions from people who had long time issues? This is a 2006 with 125k in miles.
Click to expand...
So you replaced the charcoal canister (valve included)? Gas cap?

Did you check the engine compartment valves? (Easy to test). The VSV valve on the charcoal canister isn’t available, but I think it is the same as the valve on the manifold (opens when powered). I sprayed carb cleaner in mine and got it to work (no codes so far).
Kevin.
 
kevin2i said:
So you replaced the charcoal canister (valve included)? Gas cap?

Did you check the engine compartment valves? (Easy to test). The VSV valve on the charcoal canister isn’t available, but I think it is the same as the valve on the manifold (opens when powered). I sprayed carb cleaner in mine and got it to work (no codes so far).
Kevin.
Click to expand...
I forgot to mention i changed the VSV as well. I was hoping to be done with it, but it just keeps coming up. I was underneath swapping out my brake hoses at the diff and i smelled some gas. Could it be the tank or the filler neck?
 
There is a vent on the filler neck - but yes if there is any leak (such as bad gas cap) codes will trigger. Might be time for a smoke test.
 
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