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P0446 Error Code Question

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Old 05-01-2009, 12:57 PM   #1
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P0446 Error Code Question

I have a 99 Tacoma with 3.4L V6. A while back the check engine light came on, so I invested in an OBDII tool to see what was up. It reported an error code of P0446. I ran this by a buddy who is a mechanic and he said to try replacing the gas cap. I did this and cleared the code and everything was fine for a few weeks, then it came back again yesterday with the same code. Has anyone run into this before or have any advice on what might be causing it? Thanks.
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Old 05-01-2009, 02:10 PM   #2
With sufficient thrust, pigs fly just fine.
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Welcome to Tacoma World!
FWIW, I dont think your buddy knows what he is looking for.
Sounds like an Emissions Vale issue. Check this out, and see if it helps.
http://ncttora.com/FSM/2000/Repair%2...n/cip0441p.pdf
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Old 05-01-2009, 04:21 PM   #3
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Thanks for the quick reply. Looks like it may be a little over my head. This what happens when you have a "buddy" who's a mechanic I guess...
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Old 05-01-2009, 05:07 PM   #4
With sufficient thrust, pigs fly just fine.
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Quote:
Originally Posted by Colonel Troutman View Post
Thanks for the quick reply. Looks like it may be a little over my head. This what happens when you have a "buddy" who's a mechanic I guess...
It shouldnt be to hard to fix. Identify the location of the part on the truck, and take your time. Its all just nuts and bolts.
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Old 05-01-2009, 06:55 PM   #6
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Thanks again. I used an OEM gas cap and it's on nice and tight. I'll look into the charcoal canister. Sooner or later I just have to tear into it and scrape a knuckle or two. Where exactly is the charcoal canister located? I think the next thing I invest in will be a Chilton's manual.
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Old 05-01-2009, 07:03 PM   #7
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Charcoal canister location: http://www.ncttora.com/fsm/2000/Repa...ntrol/loca.pdf

Online service manuals:http://www.ncttora.com/fsm/index.html
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Old 05-01-2009, 07:16 PM   #8
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Awesome, thanks BeefTaco. Now I have something to do tomorrow!
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