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The dreaded P0441 code

4047 Views 9 Replies 7 Participants Last post by  Smaay
This is my first post on this forum. I'm posting because I read previous posts here and believe that the experts here know the most about this problem.

The code is being set on my grandsons 2001 Celica GTS. Also, whenever he gets gas the engine either will not start without depressing the accelerator pedal, or will start but runs rough, or starts okay but shuts off soon thereafter. All of these symptoms go away after a few minutes.

I've done various tests by referring to my Celica manual, and the official Celica wiring diagram manual. I won't go into details about the tests now though because I found one problem that could be the one causing the code.

On his car the blue headed connector is connected to the VSV for EVAP. From reading prior posts here, and referring to the Celica wiring diagram, this is wrong. The black connector should be connected to the VSV for EVAP. But, when I disconnected the blue, and connected the black, the ABS light started flashing. I don't know what this means. So, before I permanently switch the connectors, I'm trying to find out if someone else has had this occur, and what they did.
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the blue connector goes to the butterfly valve in the stock air box. the black connector is for the EVAP purge VSV.
If that's all that's caused mine you will surely be my heroes because now i don't have to drop the tank. Blue was on vsv and black was on the box, lets see if the light stays off.
This is the same issue I had when I first bought my car from the dealer. They replaced the charcoal canister, fuel cap, etc. and it was this simple thing that was throwing the code the entire time. Still get it from time to time but it might be time for a new cat. Passed emissions just last month so I'm not sure
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