4 wire o2 sensor

[1991HB]

what are the colors of the 4 wires of the 4 wire o2 sensor for a d16z6??Thanks

[Jos4DCivic]

correct me if im wrong but 4 wire O2 is on OBD2 veh (unless swaped of course). should be 3 i believe.cant remember.*edit* diagram shows 4 wires.my bad. here are colors. white-grn/white-org/blk-ylw/blk

[CivicSpoon]

Naw, all OBD1 O2 sensors are 4-wire, except for the jdm d15b vtec, usdm CX, and VX (1-wire, 1-wire, and 5-wire respectively).

But the colors are Green/White (D22), White (D14), Orange/Black (A6), Yellow/Black (A25). If by chance you have an aftermarket O2, there might be wires that are just Green, White, and 2 Black wires. If that's the case, used the numbered diagram on this link and match it to your O2 sensor; to make sure you get the 2 black wires in the correct spots (which one will be under the Green wire and which will be under the White wire): http://www.hybridautomotive.com/tech/o2/#one