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P0131 Diagnostic Trouble Code Discussion for May 2017

Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)


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Trouble Ticket Help Requests for DTC P0131
Help Request Posted
2011 Cadillac CTS Luxury 3.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 1G6DE5EY6B
P0131: o2 low voltage b1s1. hello gm experts this car has lean code boths bank o2 low voltage boths bank fuel pressure on gauge show 60 koeo about 46 koer scanner show 43 psi fuel rail pressure shows 2.1 mpa I am thinking about high pressure fuel pump.any suggestions are welcome ,thanks.
May 09, 2017