help with o2 sensor

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blewup91rex

New Member
i was changing my cat the other day and when i was unbolting it i forgot to unhook the o2 sensor and it pulled the wires out of the harness so i have the wires right on the sensor but i dont know what colors from the car goes where on the sensor help please emissions due tomorrow....its a 94 integra gsr
 
o2 on the cat on a 94? I haven't worked on an integra, but I've got wiring diagrams out the ass. Now first off, I was under the assumption that because your OBD1 you only have 1 o2 and it's before the catalytic converter.... so I'm already wondering why you have one in the cat to begin with, then maybe I can find the appropriate diagram for ya. I also don't understand how you cant match up the wires from the car to the o2. There's only like 4 wires, and they're actually colored with polarity in mind (meaning I bet with some educated guesses, you could figure out which wire went where).
 
That's where it is at in the front of the cat...on o2 i think its 2 black a green and a white....and im i don't think that any of them are similar on car but if you can find something i would so greatly appreciate it,thanks in advance
 
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That's where it is at in the front of the cat...on o2 i think its 2 black a green and a white....and im i don't think that any of them are similar on car but if you can find something i would so greatly appreciate it,thanks in advance
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I'm not at my house but why is it on the cat and not the header I wonder, like the rest I've seen...
 
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