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Need help with C.E.L. P0440 & P0446 #15504 May 13, 11:51am May 13, 11:51am
Joined: Mar 2003
Posts: 78
Las Vegas
J
Jimbo OP
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Jimbo OP
J
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Joined: Mar 2003
Posts: 78
Las Vegas
Need help with C.E.L. P0440 & P0446
Need help with C.E.L. P0440 & P0446
I know it says evaporative system vent circuit malfunction and what not. They come on every 10 days or so, and I've been resetting them.
I don't have an air Intake system, its stock. I've been looking for vacuum leaks, but can't find any. Any ideas???
thanks!

Re: Need help with C.E.L. P0440 & P0446 [Re: Jimbo] #15505 May 14, 12:07am May 14, 12:07am
Joined: Dec 2002
Posts: 1,660
Houston, TX
2001 Spec Blue Toyota Celica
Grand-Touring-Dan
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2001 Toyota Celica
Grand-Touring-Dan
2001 Spec Blue Toyota Celica
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2001 Toyota Celica

Joined: Dec 2002
Posts: 1,660
Houston, TX
Check the gas tank cap. Make sure you screw that on all the way. The CEL goes off on toyotas if not screwed in all the way.

Re: Need help with C.E.L. P0440 & P0446 [Re: Grand-Touring-Dan] #15506 May 13, 4:24pm May 13, 4:24pm
Joined: Mar 2003
Posts: 78
Las Vegas
J
Jimbo OP
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Jimbo OP
J
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Joined: Mar 2003
Posts: 78
Las Vegas
thanks, but I'm afraid its not the gas cap. I always make sure its tight.

Re: Need help with C.E.L. P0440 & P0446 [Re: Jimbo] #15507 May 13, 4:49pm May 13, 4:49pm
Joined: Dec 2002
Posts: 1,660
Houston, TX
2001 Spec Blue Toyota Celica
Grand-Touring-Dan
ECelica Staff
2001 Toyota Celica
Grand-Touring-Dan
2001 Spec Blue Toyota Celica
ECelica Staff
2001 Toyota Celica

Joined: Dec 2002
Posts: 1,660
Houston, TX
worth a shot. An evap system code is not a good one to find. You may have to take it to the dealer for some work.

Re: Need help with C.E.L. P0440 & P0446 [Re: Grand-Touring-Dan] #15508 May 14, 7:19pm May 14, 7:19pm
Joined: Feb 2003
Posts: 55
Louisville, Ky
R
ryansceli
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ryansceli
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Joined: Feb 2003
Posts: 55
Louisville, Ky
This is from the shop service manual:

Possible problems with code P0440:
-Hose or tube crakced, hole, damaged or loose seal
-Fuel tank cap incorrectly installed
-Vacuum hose crakced, hole, blocked, damaged or disconnected
-Fuel tank crakced, hole or damaged
-Charcoal canister cracked, hole or damaged
-Open or short in vapor pressure sensor circuit
-Vapor pressure sensor
-Fuel tank over fill check valve cracked or damaged
-ECM

The possible problems for P0446 are along the same lines as these. Seems to be there's too much crap that can go wrong with cars.

[ 05-14-2003, 07:19 PM: Message edited by: ryansceli ]


~~Ryan~~ `n stuff
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