Originally Posted by BillBoost37

While you were burning coolant there is a good change it fouled out your O2 sensor.

The bank 1 sensor 1 (the one that matters) is in the rear exhaust manifold and can be seen by looking down past the strut tower bar.

Many have had bad luck with Bosch O2 sensors. The suggested brands are AC Delco or Denso. Rockauto usually has a rocking deal on the Denso'* and using the club discount code you save even more.