secondary 02 problem

i just bought a jdm crx sir, and the b16a has 2 02 sensors for some stupid reason. is there a way to only use one 02 sensor? i have the pw0 ecu. thanks.

The PW-0 has 2 O2 sensors as well, use 2. Otherwise, you could split the signal from one of them into both pins, but its not advisable.

stick with two sensors. splitting the signal can not be good.

ya i think i'll stick with 2 sensors then. by any chance does anyone know what cylinder's the o2 sensors should be conected too? there is one with a white round plug and the other with a green not so round plug. like 2 plugs in this picture (http://www.hybridgarage.com/tech/b16/2_7_15.jpg ). I just bought the car and it came with a header so i have a feeling that someone might not have payed attention to the location of the sensors and got them mixed up. thanks.

Shouldnt matter, the sensors will read either way.

My jdm crx also has 2 o2 sensors with a spoon chipped pw0 ecu. The o2 sensors really look like they were added aftermarket style, meaning i assumed they were put on by the guy in california that it came from to get it US legal.

number 1 o2 sensor is 1&4 and #2 o2 sensor is 2&3. it should be pi c8 and pin c16 i believe

ok but which plug goes to the 1&4 cyl? green or white. im not tracing my wires back to the ecu to find out.

ok but which plug goes to the 1&4 cyl? green or white. im not tracing my wires back to the ecu to find out.

don't quote me on this but i believe that the green goes on 1&4 and white goes on 2&3, but some one feel free to correct me if i'm wrong. and it doesn't matter bacause they are both 1 wire o2 sensors and they might just be two different brands.