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P0441 p0446 are back

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Old Oct 1, 2019 | 07:37 PM
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Default P0441 p0446 are back

So they are back. Which took longer than expected since last time battery was unplugged. I smoked the front of the car and found 2 hoses...one was leaking from the usual spot on the air intake (the nipple that breaks off) and we did the club Lexus approved fix. The other was coming off the pcv valve. Replaced the pcv valve. How would I be able to test the items in the rear namely the charcoal and vsv etc. Where do I introduce smoke back there or is there a better test? I seen some tests for same codes on camrys.

99ls


Fixd are awesome, free ones are better.

Last edited by Sin1UZFE; Oct 2, 2019 at 08:07 AM.
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Old Oct 2, 2019 | 04:45 AM
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This gives good ideas of where to start,some generic info anyhow


I also saw this on the comments on a 1999 toyota car.....
I HAD p 0441 AND P 0446. I HAD ACCIDENTALLY PULLED OUT THE TINY HOSE WHILE REPLACING THE AIR FILTER. ALWAYS CHECK HOSES FIRST .


Last edited by spuds; Oct 2, 2019 at 05:17 AM.
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Old Oct 2, 2019 | 05:48 AM
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And a very helpful link right here

https://www.clublexus.com/forums/ls-...procedure.html
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Old Oct 2, 2019 | 08:08 AM
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Originally Posted by spuds
This gives good ideas of where to start,some generic info anyhow

https://www.youtube.com/watch?v=kbgiSb-ciTk

I also saw this on the comments on a 1999 toyota car.....
I HAD p 0441 AND P 0446. I HAD ACCIDENTALLY PULLED OUT THE TINY HOSE WHILE REPLACING THE AIR FILTER. ALWAYS CHECK HOSES FIRST .

https://www.youtube.com/watch?v=FQFULrEY3NE
Which hose?
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Old Oct 10, 2019 | 04:31 PM
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Charcoal canister assembly is fine, but something I noticed.....I have always used 76 gas cuz its 200ft from my place, but was running low on a trip and stopped at a sinclair station. Filled up. When I got home got a CEL. with these codes....possible that fuel can do this?
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Old Oct 10, 2019 | 07:58 PM
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Originally Posted by Sin1UZFE
Charcoal canister assembly is fine, but something I noticed.....I have always used 76 gas cuz its 200ft from my place, but was running low on a trip and stopped at a sinclair station. Filled up. When I got home got a CEL. with these codes....possible that fuel can do this?
Check your fuel cap.
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Old Oct 10, 2019 | 08:22 PM
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Originally Posted by aptoslexus
Check your fuel cap.
I changed it with an oem one a year ago. Funny thing that it only happened when I used cheap gas now

Check vsc is back as well.

Last edited by Sin1UZFE; Oct 12, 2019 at 01:06 PM.
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