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

133 is the same code I got when my top o2 sensor was bad. Got one from www.oxygensensors.com and the code went bye-bye.

98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15