Verifired code and replaced precat O2 as it seemed a bit lazy. Hooked scope up to both O2s and test drove at highway speeds. First thing I noticed is post cat O2 takes quite a bit of driving to light off ( about 10 minutes). Pre and post voltages are swinging ...

FIX posted 9/22/2008

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle