Wow, that's a very complete post. I love th idea of making things simpler and maybe it would help with the fumes. I'll have to look it over a couple more times though and make sure I understand which hoses I'll need to leave on as well as make sure I have a vented gas cap.

...I was actually thinking of removing the expansion tank altogether and just weld up the gas tank so it only has an "in" and an "out." Anyone else done this?

This is not a good idea, you'll be inviting more problems than you will be solving...

This is not a good idea, you'll be inviting more problems than you will be solving...

Oh come on. EVERYBODY knows that the Nissan engineers added a lot of extra parts in the car for no reason...

You know I haven't read anything from Dogma in a long time. Maybe the fumes got him?