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What causes these codes? P0440, P0441, P0446

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What causes these codes? P0440, P0441, P0446

 
Old 05-08-17, 06:00 PM
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amar7613
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Getting all those codes currently but no hoses on air filter box disconnected Also getting a knocking from what I think is the fuel injectors. *tap tap tap*
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Old 11-20-17, 05:20 PM
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Smile code p0441 p0442 p0446

you were on spot with the disconnected vacuum line, several weeks ago i checked the air filter and must of loosened the line, just connected it and going to take a drive for a beer, hope it's gone while i'm driving, don't want to disconnect the battery now, i am hoping it'll reset itself in 15 mins, should be enough time for me to drink 2 bottles of bass ale thanks much for your knowledge
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Old 12-20-17, 08:25 AM
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Did you get that fixed? i have the same problem, i changed out my spark plugs and got those 3 codes with the tapping sound. i'm going to re tighten the spark plugs just in case one got loose. any advise will help. thanks
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Old 12-20-17, 09:40 AM
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berto,
Check if the evap hose has come off the vertical tube behind the air filter box. Happened to me last week when I changed the air filter.
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Old 08-07-18, 05:30 PM
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I've had the same code P0446 for months now and i just clear it from time to time. I also get a exhaust type carbon smell from the engine bay that comes and goes. Could that be a catalytic converter going bad or clogged? My mechanic says the same thing that its the charcoal canister in relation to the code that pops up.
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Old 08-07-18, 08:29 PM
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Originally Posted by tmf2004 View Post
I've had the same code P0446 for months now and i just clear it from time to time. I also get a exhaust type carbon smell from the engine bay that comes and goes. Could that be a catalytic converter going bad or clogged? My mechanic says the same thing that its the charcoal canister in relation to the code that pops up.
I would check your flex pipe and manifolds for exhaust leak. The flex pipe would be a more likely suspect since it's more exposed and tends to rot away much faster, and leak exhaust into the engine bay
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Old 08-08-18, 05:40 AM
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Originally Posted by Phantom410 View Post
I would check your flex pipe and manifolds for exhaust leak. The flex pipe would be a more likely suspect since it's more exposed and tends to rot away much faster, and leak exhaust into the engine bay
i'll have my mechanic check that out next time.. thanks
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Old 09-10-18, 01:33 PM
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Originally Posted by mikey00 View Post
These are the 3 codes you get when the evap hose is disconnected behind the air filter box.
Do you need to remove the airbox to get to it?
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Old 09-10-18, 03:31 PM
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Originally Posted by Sin1UZFE View Post
Do you need to remove the airbox to get to it?
No, you can reach behind and grab it.
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Old 03-08-19, 08:51 PM
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Originally Posted by m1tk4 View Post
That's exactly what it was in my case. THANKS!!!!


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