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P1780 Diagnostic Trouble Code Discussion for January 2006

Park/Neutral Position Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1780
Help Request Posted
2002 Ford F-150 King Ranch 5.4L Poor Idle Quality, Poor Fuel Economy VIN: 1FTRW08642
P1780: trans code. this vehicle came in to us recently with a ses light on and a complaint of rough running in idle. scanned computer and found no codes just the po1780 trans. went through and found that the fuel trims were way off from bank 1 to bank 2. about 1.0 difference fro...
January 25, 2006