CHECK ENGINE LIGHT CODE PO420

  • Tiny
  • carsale2012
  • 2007 Toyota Corolla
  • 65,000 miles

My 2007 Toyota Corolla CE (65K miles) has a check engine light code PO420 and engine eating oil. Please help me, what need to do. 2007 Toyota Corolla CE
65K miles

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Friday, February 24th, 2012 AT 1:30 AM

1 Reply

  • Tiny
  • mmprince4000
  • Expert
  • 8,715 posts

The code indicates the convertor effeciency is below desired parameters.

IF is not leaking oil, then it is burning it and that will cause the convertor to clog.

Start by checking compression.

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Friday, February 24th, 2012 AT 12:49 PM

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