3 Wire O2 Sensor

One easy way to get better milage, better cold running, AND better performance is to install a heated oxygen sensor. These are standard on ALL '87 up vehicles. I used the FORD part from an '87 2.3L Mustang. I cut the connector off a donor car in the U-pull-it. Be sure to cut the pigtail at least 6" long. Tuck the excess into the vehicle harness.




 Motorcraft DY605


 donor connector


Wiring Connections


Color of donor harness

 Vehicle Wiring Color

 Vehicle Wire Source
 O2 output  Green  Green / Blue Stripe  ECA pin 29
 heater  Black   Black / white  ISC power (+12v)
 heater  Gray  Red  TPS (Sig Rtn)