Could the "too lean" and " O2 whatever bank1" trip finally be over?

Put in the universal precat sensor yesterday ($50 from oxygensensor.com) and the thing finally runs great. By the way I borrowed a crow's foot from Advance or no way jose. Before the installation it ran so bad I parked it for three days. Gas mileage down to 16, run rough, and gas and other stuff coming out of the tail pipe. I'm guessing it is easier to splice in a univ O2 sensor that it is to remove coolant res and open up that wire harness connector on the fire wall (I have opened it up along this path and checked resistance and voltage) - plus it saved me $100.

So, new vac lines, new MAF, new O2 sensor and we're running fine today.

Cheers