It has 4 total.
Dozens
4
The 2002 Jeep Wrangler has 8 valves.
there are 2 sensors #2 and 2 sensors #1
If its a 4x4 and 3.7 there are 4 snesors. 2 on each side of the motor. That is what I have. I am changing the ones before the converter today.
The 2002 Jeep Grand-Cherokee has 12 valves.
TwoTwo
4
4
4
There are two.