Does High Flow Cats Throw A Code?

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Does High Flow Cats Throw A Code?

Since the high flow catalytic converters do not cause the same readings at the secondary oxygen sensor as stock, typically the ECM will trigger the P0420 code. This code does not necessarily mean that the high flow catalytic converter is not doing its job.Oct 5, 2014

DIFFERENCE between “high flow catalytic converter” vs stock

I’ll show you the difference between a

Chevy Silverado 5.3L: HIGH FLOW CATALYTIC CONVERTER Vs STOCK!

Chevy Silverado 5.3L:

Best O2 Sensor Check Engine Light Fix for Catless/High Flow Cat Exhaust on Challenger or Charger

If Spark plug Non Foulers don’t fix your check engine light, this is your best option. Aside from getting a tune. This is where I …