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International Automotive Technicians Network
Re: P0420 & p0430 & front oxygen sensors
Posted to Technical Discussion Forum on 11/30/2020

Hi Don,

I know some have mentioned CAT's for this issue, but I recommend the driver change their fuel quality. I say this because I went through this with my daughters Honda Fit. She was using budget fuel and I recommended she switch to Shell or Exxon.

She... Login to read more.