Help code p0420 p1457

[TedMicer]

I Replaced the Cat & Oxygen sensor
Walker Cat
NGK Down Stream Sensor

Before I can Drive 100k+ miles no light unless i pop Vtec every 2 seconds

Now once i delete the code with the new cat it pops up on idle

 

[RedRyder]

Some info on getting rid of the 1457:

http://www.6thgenaccord.com/forums/showthread.php?t=38000&highlight=p1457

 

[james'99]

Denso O2 sensors are OE. Do you have the old sensors?

Clean and flip the seal on the gas cap and erase the codes.