P1420 Diagnostic Trouble Code Discussion for June 2009
NOX Adsorptive Catalytic System Efficiency Too Low
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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 Mercedes-Benz SLK230 Kompressor 2.3L Poor performance VIN: WDBKK47F0X P1420: Air pump switchover valve. ... Cleared and the P1236 comes back as pending. Research on archives pointed a lot of directions with many suggesting the K40 relay box. This thing has the supercharger on at idle and this car is a dog while driving. Need help... |
June 18, 2009 |
