ef help

gcef89 · Post by **gcef89** » Sun May 29, 2011 1:51 am

so i swapped in a b18a1 into my 90 civic si everything is working other than my 02 sensor i got the 4 wire 02 sensor and now i have no clue what wires go to it anybody know? or if you need more info let me know

Redline · Post by **Redline** » Sun May 29, 2011 2:38 am

i am sure you only need the 4 wire if you do the obd1 swap, but i may be wrong

Post by **stolle** » Sun May 29, 2011 3:00 am

if your still obd0 use your old one wire o2, not the 4 wire.

gcef89 · Post by **gcef89** » Sun May 29, 2011 5:18 am

well im obd1 now thats why i needed the 4 wire 02 sensor

N2HIFI · Post by **N2HIFI** » Sun May 29, 2011 5:57 am

gcef89;265813 wrote:well im obd1 now thats why i needed the 4 wire 02 sensor

What did you use to convert to obd1? If you used a rywire conversion harness then it should have came with wires to splice a 4 wire o2 too

gcef89 · Post by **gcef89** » Sun May 29, 2011 5:20 pm

i have the wires but i have no pigtail for my 02 sensor so i have no clue what color wires go where?
i have these color wires left over
pink
brown
two blacks
blue
red
yellow
orange
white
yellow,orange,and white tested as hot wires

gcef89 · Post by **gcef89** » Fri Jun 10, 2011 10:49 pm

does anyone know what wires i need for my 02 sensor how many positives or negatives i need?

JustRob · Post by **JustRob** » Sat Jun 11, 2011 2:33 am

This should be able to help you figure out which wires go where. Next time buy a quality conversion harness so you don't have this problem.

http://www.ff-squad.com/technet/wiring.obd1.htm

gcef89 · Post by **gcef89** » Sat Jun 11, 2011 5:27 pm

thanks that helps out a lot!