came in with check engine light on code p0420 post 02 sensor is staying at 1.275 volts all the time even if you unplug it. Back probed the signal wire and have voltage of 4.3volt I'm thinking it is the pcm [...] anyone ran in to this before?

FIX posted 1/29/2007

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