#47 - Josh Wright - 07/25/2010 - 10:55I have a 2000 honda passport 2wd, 3.2L V6 with a P0420 Check Engine Lite. I've had it in the shop for 2 days-nothing. They can't figure it out. Both CAT's can't be bad!? New O2 sensors front/rear-nothing. Engine seams to chug wh...