Honda CEL Issue?

[maverickfhs]

Actually have stacked two 42009 in current setup. I'll go ahead and reset and then see what happens. Thx

Ok well I'd probably stack another 42009 in there, but truthfully without clearing the codes and then watching for pending or hard codes, we don't know -- your current setup may be sufficient.

Also, if anyone is REALLY cheap, these are the least expensive 42109 (extended) clones I've found at $10/pr, and they seem legit -- I have not installed these exact ones but I've handled them and the threads seemed fine
https://www.amazon.com/dp/B0D3BY96KQ

 

[D60]

Actually slight correction: for M18, the shorter versions are 42002.

Anyway, two 42002s equal one 42109. To satisfy a '98 CRV I had to use three 42002s

 

[Nukeman7]

You might need a dose or two of Cataclean to get rid of the P0420 code. It worked for me on a Honda Accord. Disconnecting the battery or pulling the PCM fuse should also clear the CEL code on the Honda.