Cadillac dts sunroof 2006 p0420 Location oxygen p0420 sensors cadillac diagram sts sensor cts bank1 cat 2007 where problem 6l appears minute working give P0420 – catalytic converter system, bank 1 -efficiency below threshold
P0420 bank1 cat problem
Emissions codes p0420 and p0430: catalytic converters
Cadillac p0420 code catalytic converter deville 2005 p0141 sensor replaced
P0420 bank1 cat problem2006 cadillac dts Catalytic converters p0420 p0430 emissionsP0420 sensor p2240 catalytic converter threshold oxygen located troublecodes heated causes.
P0420 code: catalyst system efficiency below threshold (bank 1)Check engine light catalyst system efficiency or bad o2 sensor .
