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P1549 Diagnostic Trouble Code Discussion for September 2012

Charging System High Voltage

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Trouble Ticket Help Requests for DTC P1549
Help Request Posted
2003 Ford Expedition XLT 4.6L Hesitation, Poor Fuel Economy VIN: 1FMRU15W73
P1549: Intake Manifold Runner Control Circuit Malfunction. ... help.customer brought vehicle in after replacing spark plugs.said it was still running bad and using a lot of fuel.we scanned and it showed lean on bank one and rich on bank two.had hand check for vac.leak.found gasket leaking.replaced intake gaskets put i...
September 04, 2012