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Turbo underboost and catalyst low efficiency

  

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2014 chevy cruze 1.4l turbo 146000 turbo under boost and cat low efficiency. Could catalytic converter be bad?


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Posted by: @squidward69

Could catalytic converter be bad?

Possibly.


2

It might be a clogged catalytic converter. Scotty shows how to test for this with an exhaust back pressure gauge.

https://youtu.be/qJTmddbOxMk


@oskool just watched video the car runs fine even for days at end but will die and have a hard time starting after and they were only codes reading did test o2 both one and two and showing that bank 2 is doing same as one when I should be at 6v so dunno maybe be something other then cat bad thanks for info


Please list all the code numbers you're seeing on the scan tool.


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