Toyota RAV4's have two (2) O2 sensors.
The 2003 Toyota RAV4 has 16 valves.
You have two oxygen sensors in Toyota Rav4, One before the catalytic converter and another after.
The 2003 Toyota RAV4's engine produces 148 hp @ 6000 rpm.
The gas tank on the 2003 Toyota RAV4 holds 14.7 gal..
4 all together
4 Spark plugs
2
There are two in front on my 1998 Rav4. One on each rail in front, left and right. But, It depends on how many airbags the car has. For example, if there are side air bags as well there will be additional sensors for the side air bags.
The 2001 Toyota RAV4 has 16 valves.
The 2010 Toyota RAV4 has 16 valves.
The 2006 Toyota RAV4 has 16 valves.