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.
Parts
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Wiring Connections
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| O2 output | Green | Green / Blue Stripe | ECA pin 29 |
| heater | Black | Black / white | ISC power (+12v) |
| heater | Gray | Red | TPS (Sig Rtn) |
