[Chump]

After you get the O2 sensor in and working, run a can of SeaFoam through the gas tank to clean up the carbon in the engine.

 

[Chump]

If you have an Autozone nearby, get your O2(Bosch OE type) there, also a set of Champion Truck Spark plugs and get a Coolant Temperature Sensor-this is the sensor that tells the computer what temp the coolant is at so that it can regulate fuel mixture and timing. There is another sender that is used for the dash gauge...they are two different parts-so get the correct one, you dont want the one for the dash gauge.