How many O2 sensors are on the 2003 RT Coupe and where are they and if there's more than one what are the different types in different ones I need to purchase can anyone help my

 

Which engine - the 2.7L or the 3.0L? Seems to be a difference in the number of sensors used in each, though three is the typical number for the V6's.

 

RT is the 3.0. There are 3. Upstream bank 1 and bank 2 and downstream. Unless you have pre cats (California car), then there are 4. I assume you have a check engine light on and have read the code which will tell you which sensor is bad.

 

Yeah the check engine light is on and it's a3.0 are all the sensors the same thing or different for each areas where they are located and no not a california vehicle do I purchase four or three of the same sensor??

 

Depends on what the code is. The code will tell you which sensor and, no, they are not all the same. They are located on the exhaust manifold and after the catalytic converter.