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  1. C

    P0420 and P0430 cat codes keep coming back

    I narrowed my similar issue down to the remote start. Clear codes and the do not use the remote start and see if the codes return. This has resolved my codes from coming back. I posted my exact problem on this forum, but no one has replied as to what could be related to the remote start that...
  2. C

    Remote Start Throws Cat Codes

    Have a 2014 Explorer 3.5 Limited. When the code first generated it reported P0157 Circuit Low Voltage Bank 2 Sensor 2 suggesting to replace the Oxygen sensor. Got it replaced and the code returned shortly after changing. Occasionally, the P0430 Catalyst System Below Threshold Bank 2 code would...
  3. C

    P0420 and P0430 cat codes keep coming back

    Are you using a remote start?
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