need help with my bros civic cx. he has a b16a in it. on the o2 sensor it has one wire going to the p28 ecu. it runs fine but his check engine is on. we want to put a heated 4 wire o2 on there but dont know where to pin the wires to. also his temp gauge is not work so good. it takes along time to go up. is that the problem, cuase of the one wire?

 

This thread is from a few days before yours:
https://honda-tech.com/zerothread?id=1494671

This one is from hondaswap.com, look at the bottom of the page:
http://www.hondaswap.com/forum...41608

And this thread is just a general one for ecu pins:
https://honda-tech.com/zerothread?id=1171263

Good luck, i did mine today using all these links.

 

hey thanks ill try it on my day off