Hey guys,

Need a little help, this vehicle has been here with the same problem a few times check engine light with code P420. First time vehicle came in we checked air fuel sensor and oxygen sensors, replaced all sensors. Code went away for a a month then veh...

FIX posted 9/28/2010

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