>If the O2 sensor was bad, could I still get such a lack of emmissions from >the >car? The Surging is caused by a Slow O2 sensor.... BTW My car with no Kitty just had it's emmisions inspection and Blew a CO of .25% of 1.2% Allowed and 29ppm HC of 220ppm Allowed... Things that make you go Hmmmmm...... Later! Eric Fletcher '87 5KCSTQIA2RSR2B St. Louis, MO STEADIRIC@aol.com