Help! Oxygen Sensors?

[Donne Trav]

How many 02 Oxygen Sensors are on a 1994 LT1? I've seen in reference,
"bank 1", left sensor & right sensor and "bank 2", left sensor & right
sensor. So, are there 2 sensors EACH SIDE (left & right) for a total of 4?
Very confused!

Thanks

 

[93Rubie]

My buddies 94 only has 3. Two upstream 02 sensors and one downstream after the cat on the pass. side.

 

[Hib Halverson]

94s were part of GM's "early roll-out" of OBD2 and have partial OBD2 support.

As "93Rubie" says, 94s have three O2Ses

Bank 1 Sensor 1
Bank 2 Sensor 1
Bank 2 Sensor 2