oxygen senser wire

[89ZCCivic]

I m having trouble finding the wire that goes into the oxygen senser on my 89 honda civic HB .there are 3 wires that i think could be it ones yellow. 2nd one is green with black and 3rd is black this one has another wire running through the inside and its white . ohyeah i ve already tried hooking up the yellow one since it seems to be hot when the egn. switch is on but that wire didnt help my num 1 code still co mes out after driving for about 10 min.

[Scott82]

try the black one. Pretty sure that will fix u up

[89ZCCivic]

yes but the black one has two wires running through it it has a thin white wire almost like the wires that the cable company uses.

[turtlecrxsi]

Specifically, it's the wire that's got the black coating over the white wire.

[89ZCCivic]

woldnt it be easyer to just run the ecu wire direct to the O2 senser? and if your saying its the black wire ,what do i do with the white wire ?

[turtlecrxsi]

It's the white wire. The white wire has a black coating on it to protect it, being that it's one of the most important wires the ecu reads.

[FabricGATOR]

Dont let the o2 sensor wire short circuit to ground. The O2 sensor is a millivolt thermocouple. meaning it makes milivolts (pos (+)) when it is at various temperatures. If you let it shortcircuit to itself or to ground when installed you might as well go buy another one.

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[89ZCCivic]

well I hooked it up to that white wire and it seems to have fixed my O2 problem , Thanks