I was swapping the primary/upstream oxygen sensor on my son's car (96 Accord EX 2.2) the other day when the wires popped out of the connector. The connector wasn't attached to its metal bracket and when I removed that short piece of pipe in the exhaust where the O2 sensor lives, it fell and ripped the wires right out of the connector.

Can someone tell where the wires go in the connector, or tell me the function of each wire (ground, signal, heater, heater)?

Colors are wht/red, grn/blu, yel/blk, and orn/blk.

 

I think I found my answer here in this previous post by tech8...
https://honda-tech.com/honda-accord-.../#post49861601