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P2099 Diagnostic Trouble Code Discussion for September 2013

Downstream Fuel System Rich - HO2S-22 (Bank 2 Sensor 2)

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Trouble Ticket Help Requests for DTC P2099
Help Request Posted
2009 Chevrolet Traverse LS 3.6L MIL Lamp on VIN: 1GNER13D69
... came in with p2097, p2099, p0420, p0430. I cleared codes and drove it for a day. only codes p0420 and p0430 reset. I seen a couple of service messages/tsbs for these vehicles saying check for exhaust leaks, injector problem...
September 19, 2013