ls o2 question

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DjMcPhatty

Senior Member
ok, so heres the deal: My o2 sensor went bad last week. I order a new bosch universal one to put replace the bad one. Today I go to put the bosch one on, and low and behold the wiring to the old one is all fucked up. I cant tell which wires went to which on the old o2 (a universal one that came with the engine) anyways heres where im at...
the bosch o2 sensor has four wires: 2 black, one white, one blue
the car has: 1 orange, 1 yellow, 1 green, and 1 white.

Trial and error would take too much time, and Im late for work, anybody know what color to connect to what? I know the 2 black ones connect as the "heater" wires and shit, i dunno, its been a long week w/ school and work. Maybe I'm going nuts. Anywayz any help would be appreciated.

PS....92 civic w/95 b18b (has an the b18s wiring harness). bosch universal 4 wire o2.

Thanks
 
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