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.

The engine light will come and go. Does not stay on permanently. Any ideas? -
Answer 1
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 -
Comment 1
Thank you for the response. This will help me when the light comes back on. Dave in Greenwell Springs, LA -