Your Parts supply company should be able to tell you for sure but you will have between 3 -4 o2 sensors.

 

I think for a 2000 non-Cali model you should only have 1-o2 sensor, but I think on the Cali- model there should be 2 or 3 but I not sure. But someone on here should be able to chime in with the correct info...

 

I'm about 99% sure I have at least two. Upstream and downstream. Just not sure if there is one on each mini converters on the manifold.

 

Okay forgive me I looked back at my manual and there is the chance of having 2 or 4 sensors if there is 4 then one is on the block getting readings from the 1st cylinder the 2nd is with the mini-cat and the other 2 are downstream and they feed info relating to the fuel to air ratio

 

There are 4 if it is a california car 2 before mini cats and 2 after. Just went through this.

 

Mine is non california.

 

My 2000 has 2. One up stream and now down stream. Plus I only have one Cat.