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2010 4cyl 2.4L Equinox LT P0420 code

   
Old April 27th, 2017, 1:03 AM
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Default 2010 4cyl 2.4L Equinox LT P0420 code
My 2010 4cyl 2.4L Equinox LT is pulling engine code P0420. What is it for?
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Old April 27th, 2017, 2:01 PM
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You can Google the code definition, but you most likely have a bad downstream oxygen sensor or a bad catalylic converter.
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