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P1151 Diagnostic Trouble Code Discussion for October 2011

Electronic Throttle System Sub Accelerator Position Sensor 2 Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1151
Help Request Posted
1999 Ford F-150 5.4L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 2FTRX18COX
P1151: o2 2/1 indicates lean. ... customer says that the idle drops at stops. I cant verify the nearly dying at stops. After intake gasket repalcement the only dtcs to come back were p1131 and p1151 o2 indicates lean with p0401 egr insufficant flow. Before gasket replacement it was p0171 a...
October 03, 2011