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2000 Odyssey Catalytic Converter

3K views 1 reply 2 participants last post by  William Wiles 
#1 ·
Replaced the EGR valve but still have the Check Engine light on. The fault code was P0420:
Defintion- Catalyst efficiency low-bank 1
Explanation-The oxygen sensors monitor the catalytic converter's ability to store oxygen.

Anyone else ever run into this?

Bill
 
#2 ·
You need to study some of the threads on code
p0420. It is catalytic converter not EGR. Whils running a long time with a bad EGR can cause the converter to go bad it will not do that without generating a P0401. You need concentrate on the converter and O2 sensers.
 
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