Two, one upper one lower.
how many oxygen sensors does a 2003 kia sedona 3.5 have
two one upper one lower
The TCM is the transmission control module and it has nothing to do with oxygen sensors!
The oxygen sensors are located in the exhaust system on either side of the catalytic converter.
There are 2 o2 sensors. One directly in front of the engine on the exhaust manifold (upstream), and another underneath the car, after the catalytic converter (downstream).
There are four oxygen sensors one on each exhaust manifold or bank of cylinders and one after each cat for both banks of cylinders
All O2 sensors are located somewhere on your exhaust pipe.
The 2001 Kia Sportage has 16 valves.
The 2001 Kia Rio has 16 valves.
The 2001 Kia Optima has 16 valves.
The 2003 Kia Optima typically has two oxygen sensors: one upstream (pre-catalytic converter) and one downstream (post-catalytic converter). These sensors help monitor and optimize the engine's air-fuel mixture and emissions. However, the exact number may vary depending on the specific engine configuration.
in the exhaust manifold