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P0173 Diagnostic Trouble Code Discussion for June 2012

Fuel Trim Lean Or Rich (Bank 2)

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Trouble Ticket Help Requests for DTC P0173
Help Request Posted
2006 Mercedes-Benz S430 4.3L Hesitation VIN: WDBNG70J16
P0173: self adaptation of fuel mixture left bank at limit. Based on codes and pattern failures for these faults, I replaced the crankshaft position sensor and the mass air sensor. both with new Bosch parts. The customer complained of the typical hard or no start and rough running. Along with these symptoms the custome...
June 12, 2012