32 psi
yes
In the gas tank. I have 2001 Echo.
2001 Toyota Echo doesn't have a timing belt.
http://www.carspace.com/guides/Toyota-Echo-How-to-change-oil
http://pdftown.com/2000-2002-Toyota-Echo-Service-Manual.html
32 psi, look inside driver door.
3.5 Liters
see link
timing chain.
go to dealer
i have a 2001 and it gets about 39-42 mpg