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P1129 Diagnostic Trouble Code Discussion for April 2019

Closed Loop Fueling Not Achieved (Bank 2)

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Trouble Ticket Help Requests for DTC P1129
Help Request Posted
2006 Dodge Ram 1500 ST 4.7L Stall, Loss of throttle VIN: 1D7HA18N56
P1129: Bank 2 no closed loop. Customer originally came in with the above codes and a p0420 and p0430. Both catalytic convertors were replaced. This vehicle runs great most of the time. Has intermediate lose of throttle. Will die sometimes. Our scanner reads that is it in closed loop ev...
April 01, 2019