I've got an obd2a civic dx and a '93 b18a1 for a swap. I've narrowed my "need list" down to just the o2 sensor, but the stock o2 sensor for the 92-94 integra is all 4 wire?? So my question is, do I just use a 2 wire, or is there a way to wire a 4 wire o2 sensor? Going obd1 in the swap- already have all the jumpers/plugs. 2nd part of the question, what o2 sensor is a 2 wire if that's what I need, or - how do I convert the 3 to a 4 wire?

 

There is no 2 wire your engine uses a 4 wire so just use that.

 

how would I splice this into my harness ? car has a 3 wire o2 sensor?

 

post picture of what you have because to my knowledge there are only 1, 4 and 5 (some people call them 7) wire 02s.

 

I'm using this guide here... just assumed the dx is a 3 wire? Is this not true?
http://www.civiclife.net/board/topic...in-a-obd2-car/

 

I just want to do the swap right, I don't want to have idle issues.

 

or can I just use stock civic o2?

 

The integra 4 wire and DX 4 wire are the same sensor the only difference is the wire length. The only sensors that have different wire numbers are the idle air control valve. The DX uses a 3 wire and the integra uses a 2 wire so you'll have to convert the plug and adjust the wiring at the ECU connector.

 

thanks for clearing this up, I read something wrong, but this clears it up... Sorry for all of the confusion