I have a civic cx with a jdm d15b bout to be turbocharged here in januay for the new year. So on my harness I relized that I only have a 1 wire o2 sensor how can I make a 4 wire o2 sensor hookup? Thanks, Mark

 

what for??? are you running a P28, if so just have it chipped (for boost anyways) and do away with the o2 heater, or the o2 all together.

if you are running a p08 you only need the one wire anyways.

 

well I am running a p70 ecu thats what came with my swap but if I was using a p28 then when I get boost just do without it? what if I would say if I got aem wideband? would I just tune that with the ecu. sorry noobie at this. thanks

 

im not sure what a P70 is but i am almost certain its not USDM, which means it doesnt have an o2 heater, so the 1 wire o2 is fine. are you throwing a code???

when you go boost you are gonna have to get your ecu chipped, most people just do away with the stock narrowband o2 and use the wideband.

 

You can either run it from the O2 to the shock tower harness or run the wiring directly from the O2 to the ECU

 

see what i am going to do when I go boost is get the aem wideband with the set up but i was just wondering if there was a way but i guess wideband is a different thing a p70 ecu is the zc ecu that came with my d15b motor from japan but it runs fine and all and yes its throwing a o2 sensor code and a 19 code as well automatic lock up code. thanks guys

 

you got yourself an automatic transmission ECU. that sucks.

you can convert it, but i would personally just buy a chipped ecu.

 

thats what I thought That I have a automatic ecu but its still runs fast as **** does really good for a auto ecu lol. I think I will get a p28 pretty soon here for turbo in january.