P0420 Diagnostic Trouble Code Discussion for August 2017
Catalyst Efficiency Below Normal (Bank 1)
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| Help Request | Posted | |
| 2013 Ford Escape SE 1.6L Surge VIN: 1FMCU9GX9D P0420: cat efficiency below thresh hold. this vehicle surges on acceleration it sets no codes and cant find anything wrong on data stream it was taken to another shop before it came to me and had cat and o2 sensors replace it now has no codes but still surging under load |
August 10, 2017 |
