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P1420 Diagnostic Trouble Code Discussion for March 2011

NOX Adsorptive Catalytic System Efficiency Too Low


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Trouble Ticket Help Requests for DTC P1420
Help Request Posted
1997 Mercedes-Benz S320 LWB 3.2L MIL Lamp on VIN: WDBGA33G5V
P1420: A.I.R. Switch over valve - y32. ... p0443, p1525, p0802). Originally the MIL bulb was burned out. Replaced bulb, cleared codes. Drove vehicle about 2 minutes and the exact above mentioned c...
March 10, 2011
1997 Mercedes-Benz S320 LWB 3.2L MIL Lamp on VIN: WDBGA33G5V
P1420: A.I.R. Switch over valve - y32. ... p0443, p1525, p0802). Originally the MIL bulb was burned out. Replaced bulb, cleared codes. Drove vehicle about 2 minutes and the exact above mentioned c...
March 10, 2011