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... started it up last night and it worked just fine... ... except for the 02 light...


So, you are saying that it stays running OK now ?? Great!

The O2 sensor light is reset by reaching up under the dash, on the back of the speedo is a "slide switch" . Simply slide it to the other position, and you should be OK for another 90K miles. If you get on your back and slide under there, you might be able to see the switch, it should be black, and the speedo case is white. That light goes on based simply on mileage on the speedo. It doesn't have a thing to do with whether or not the O2 sensor is good or bad.

C/YA!
Jeff
'88 Trooper
2DR LWB 4ZE1 5SP
bone stock DD