2007 Chrysler Town & Country Q&A
2007 Chrysler Town & Country Question: Check engine light is on and I ran a quick diagnostic test. Code P0420 appears.
thats telling you your catalytic converer system is below threshold on bank 1. which means you o2 sensor after the cat is not seeing a diff between the one in frt of your cat. have it tested by your mech - globalhelper