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P1129 Diagnostic Trouble Code Discussion for August 2004

Closed Loop Fueling Not Achieved (Bank 2)

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Trouble Ticket Help Requests for DTC P1129
Help Request Posted
1999 Land Rover Range Rover SE 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: SALPV1240X
P1129: undocumented code. Hello everyone, Vehicle has check engine light on, has absolutley no power, will not take gas. It feels as if it is starving for fuel, but fuel pressure is good. Spark is present at all cylinders. You have to pump the accelerator just to get it to move a coupl...
August 25, 2004