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P2099 Diagnostic Trouble Code Discussion for March 2015

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 Jaguar XF Premium Luxury 4.2L MIL Lamp on VIN: SAJXA06B49
P2099: Post cat fuel trim system too rich bank 2. After replacing the b2 s1 o2 this p2099 came up after test drive. Would this post cat code be a catalyst efficiency problem. Also for the p0101 mass air code I smoke tested intake and only bit of smoke coming from egr valve. Any common mass air problems with t...
March 05, 2015