B18b1 o2 wiring

Honda18

Junior Member
Hello, I need to know how to rewire my 97 OBD2 civic hx harness(5 wire o2 sensor) to a 4 wire o2 sensor.
 

posol

RETIRED
Staff member
you need to convert from 5-wire to 4-wire.

this is doucumented in the articles section. although written for obd1, its the same procedure for obd2-- just the pinouts are different. there is a conversion chart for the pin outs in the reference section as well.
 
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