Check engine light is on and I ran a quick diagnostic test. Code P0420 appears. on 2007 Chrysler Town & Country

The engine light will come and go. Does not stay on permanently. Any ideas?

by in Greenwell Springs, LA on March 19, 2012
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1 answer 1 comment
ANSWER by , March 19, 2012
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 by , March 19, 2012
Thank you for the response. This will help me when the light comes back on. Dave in Greenwell Springs, LA