im sorry guys, this may be noobie as hell to you, but i just have the O2 censor chilling in the header.. im wondering where it hooks up to on the harness.. i may be wrong but dont preludes have 2 O2 censors.. i know the engine isnt running right without the reading from the O2... the wire comming out of the censor is like 8 in long, i dont see where it goes, splice time... help would be much appreciated..

 

Where is the plug for the O2 sensor on your harness? That's where it goes. The O2 sensor should have four wires. I had to lengthen my wires to reach the O2 sensor.
OBD I has one O2 sensor and OBD II has two.

 

The O2 sensor plug should be near the front of the motor around the block stamp. You will need to extend the wires down to the O2 sensor. Depending on the model of car that you have, you might also need to rewire to a 4 wire O2 setup - only if you have a CX or VX.

 

I'm glad you have nothing better to do man..