Thread: CEL Code P0420
View Single Post
JFP in PA JFP in PA is online now
Registered
 
JFP in PA's Avatar
 
Join Date: Aug 2010
Location: Earth.............
Posts: 2,899
It could be the three way cat (bank 1-3), but the diagnostics manual suggests five seperate test sequences that should be run (some require either a PIWIS or Durametric Pro system to run) involving the EVAP system and O2 sensors before trashing the cat (that is because the TWC is one expensive part number).
__________________
Accrochez-vous bien de vos rêves..........."
Old 12-14-2012, 01:45 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)