I am hoping that someone can help me figure out how to fix these codes on my Sequoia. I'd like to do the work myself and save a few $$$. I had a Toyota repair shop pull the codes from my '06 Sequoia Limited and they came up with the following:

1 - P0031 (O2 sensor #1 bank 1)
2 - P0051 (O2 sensor #1 bank 2)
3 - P0441 (Incorrect Purge Flow)
4 - P0446 (Evap Vent Control Circuit)
5 - P0430 (Catalyst Bank 2)
6 - P2410 (Switching Valve Open)

Codes 1 & 2 I can fix by replacing the O2 sensors.

Codes 3 & 4 I *think* can be fixed by replacing the vacuum switching valve ( )

Code 5 I *think* is associated with codes 1 & 2??

I'm confused by code #6. Searching the internet does not lead to a definitive match on the specific code (2410). Similar codes (and a text search on "switching valve open") lead me to believe that this is associated with an air switching valve?? ( )

Again, I'm hoping that a more experienced someone can tell me if I'm close on my assumptions and can help me get this fixed without having to take it to a dealer or mechanic.

Thanks!

 

I found:
P2410, Fuel Cap Sensor/Switch Circuit Low

You might try a new gas cap or just replace the current gasket in the cap.

 

Boy, wouldn't it be great if it were that simple! I'll give that a try and repost the results.

Also, if anyone else can comment on my approaches with the other codes, I would be most grateful!

 

All those codes doesn't mean all those systems have problems, one may cause another to trigger. Not on a Toyota, but I had a stuck EVAP system valve on a Nissan and just cleaned it up, used some type of lube on it (can't remember what type) and it worked for another year or so. When the code reappeared again, I replaced the valve with a new one. (OEM).

If you are going to do your own work, I suggest getting your own code reader and a good multi-meter, (Fluke is best).