Join Now
International Automotive Technicians Network

P1420 Diagnostic Trouble Code Discussion for April 2005

NOX Adsorptive Catalytic System Efficiency Too Low


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1420
Help Request Posted
1999 BMW 740iL 4.4L MIL Lamp on VIN: WBAGH8330X
P1420: mfr controlled aux emission control. Not sure where to start on this one. My info is not real good. Any help would be great.
April 06, 2005
1999 BMW 740iL 4.4L MIL Lamp on VIN: WBAGH8330X
P1420: mfr controlled aux emission control. Not sure where to start on this one. My info is not real good. Any help would be great.
April 06, 2005