P0420

Illuminated MIL with Diagnostic Trouble Code (DTC) P0420 – 2011-2013 Ford Fiesta

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1.6L ENGINE – ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) – DTC P0420   FORDeBay: 2011-2013 Fiesta   2011-2013 Fiesta vehicles equipped with a 1.6L engine may exhibit an illuminated MIL with diagnostic trouble code (DTC) P0420.   SERVICE PROCEDURE NOTE: If the transmission control module (TCM) calibration required an update when the PCM calibration was updated, … Read more

Malfunction Indicator Lamp (MIL) with DTC P0420 and/or P0430 – 2013-2015 Lincoln MKZ

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3.7L – DIAGNOSTIC TROUBLE CODE (DTC) P0420 AND/OR P0430 – BUILT ON OR BEFORE 10/27/2014   LINCOLNeBay: 2013-2015 MKZ   Some 2013-2015 MKZ vehicles equipped with a 3.7L engine and built on or before 10/27/2014 may exhibit an illuminated malfunction indicator lamp (MIL) with DTC P0420 and/or P0430.   SERVICE PROCEDURE   DG9Z-5G232-D Front Catalyst … Read more

No Start Rough Idle – MIL with DTC’s P0171, P0174, P0173, P2195, P2197, P0420, P0301, P0302, P0303, P0304, P0305, P0306 – 2003-2005 Lincoln LS

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ROUGH IDLE OR MIL LAMP ON   LINCOLNeBay: 2003-2005 LS   2003-2005 LincolneBay LS vehicles with 3.0L Duratec V6 engines may exhibit a no start, rough idle, or malfunction indicator lamp (MIL) on with diagnostic trouble codes (DTCs) P0171, P0174, P0173, P2195, P2197, P0420, P0301, P0302, P0303, P0304, P0305, P0306.   This may be due … Read more