2001 Toyota 4Runner Charcial Canister - Used Part Help

2001 Toyota 4Runner Charcial Canister - Used Part Help Hi Guys:

I recently got the CE / VSC Trax / VSC Off idiot lights on my 2001 Toyota 4Runner Ltd (3.4 V6).... I ran the OBD II codes and sure enough the codes came up P0440 / P0441 / P0446. The Evaporitive Emmissions (Early Intrusive System) codes....

I did a little research and found that the five primary culprits are:

1. Either a bad or unsecured gas cap.
2. A disconnected canister vent line from the air filter.
3. Stuck or Bad VSV's.
4. Bad Charcoal Canister.
5. Hole somewhere in the line.

I did the whole process of elimination remedy and:

1. Bought a new gas cap.
2. Checked the vent line... it was fine.
3. Couldn't test since I don't have the electrical equipment.
4. Couldn't check... don't know how.
5. Sprayed soapy water to see if I could see any leaks along the line... didn't see any... didn't smell a fuel leak at all.

I went on Car-Parts.com under fuel tanks to see who had a used canister in my area due to the fact that if it is the canister I could get it for $50-$100 instead of the dealer cost of $450 (the after market I found was actually more expensive).

On Car-Parts.com it has the fuel tanks grouped together for 2001 and 2002 4runners. I've heard conflicting stories on whether or not the charcoal canister even exists on the 2002 4runners and whether or not if it does exist if it is the same part.

Finally... here's the question... Where can I find a complete listing on parts compatibility between different models? Is there any go to source where I can get a definitive answer?

Second question... does anyone know where I can download a repair manual / diagrams for my 2001 Toyota 4Runner?

Thanks in advance for the help.

The closest FSM you can download is for a 2003. According to it the 2003 is equipped with 2 charcoal cans.

Anyone know where I can find the definitive answer on whether or not the 2001 part is the same as the 2002?

Anyone?