97 Camry has 18.5 gallon tank.
4 cylinder Camry has 2 oxygen sensors.
My 97 Toyota Camry LE has 168k on it and it runs like brand new.... no problems at all in its history. If you keep your Camry well maintained you can get an easy 250 - 275k out of it.
The 2002 Toyota Camry has 16 valves.
The 2010 Toyota Camry has 16 valves.
The 2001 Toyota Camry has 16 valves.
The 2011 Toyota Camry has 16 valves.
The 2014 Toyota Camry has 16 valves.
The 2006 Toyota Camry has 16 valves.
The 2008 Toyota Camry has 16 valves.
The 2007 Toyota Camry has 16 valves.
The 2012 Toyota Camry has 16 valves.