P0420 bank code catalytic efficiency below threshold converter system location common troublecodes causes cat P0420 – catalytic converter system, bank 1 -efficiency below threshold P0420 code
98,000 miles - intermittent P0420 - solved - Ford Focus Forum, Ford
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P0420 codeP0420 intermittent solved miles focus forum ford Obd p0420 diagnostic code for catalytic converter; ford focus 2004.
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![P0420 Code - Ford Focus Club - Ford Owners Club - Ford Forums](https://i2.wp.com/fordowner.b-cdn.net/uploads/monthly_2020_08/20200711_120643.jpg.89d8d447dbcb097d066d561915eecd4a.jpg)
![FORD FIX CODE P0420 CATALYST SYSTEM EFFICIENCY ANY FORD - YouTube](https://i.ytimg.com/vi/dSKsHy8B67Y/maxresdefault.jpg)
FORD FIX CODE P0420 CATALYST SYSTEM EFFICIENCY ANY FORD - YouTube
![98,000 miles - intermittent P0420 - solved - Ford Focus Forum, Ford](https://i2.wp.com/www.focusfanatics.com/forum/attachments/mk3-focus/258359d1550010836t-98-000-miles-intermittent-p0420-solved-img_0155b.jpg)
98,000 miles - intermittent P0420 - solved - Ford Focus Forum, Ford
![OBD P0420 diagnostic code for catalytic converter; Ford Focus 2004](https://i.ytimg.com/vi/H59NAgBfkLs/maxresdefault.jpg)
OBD P0420 diagnostic code for catalytic converter; Ford Focus 2004
![FORD FOCUS ENGINE LIGHT CODE P0420 Catalyst System Efficiency - YouTube](https://i.ytimg.com/vi/NnqDgHik-Mk/maxresdefault.jpg)
FORD FOCUS ENGINE LIGHT CODE P0420 Catalyst System Efficiency - YouTube
![P0420 – Catalytic converter system, bank 1 -efficiency below threshold](https://i2.wp.com/www.troublecodes.net/wp-content/uploads/2015/07/cat-location.jpg)
P0420 – Catalytic converter system, bank 1 -efficiency below threshold