Originally posted by PoopStainz:
as you probably read, ive been getting bad gas milage. well my car finally threw some codes, here they are:

P0133

P1131


please help, thanks


Here:

P0133 Upstream Heated Oxygen Sensor circuit Slow Response - Bank No. 1.

P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1.

and here:

http://contour.org/FAQ/FAQ.php?s=probs&displayid=10