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P0472 Diagnostic Trouble Code Discussion for December 2013

Exhaust Backpressure Sensor Circuit Low Input

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Trouble Ticket Help Requests for DTC P0472
Help Request Posted
2002 Ford F-550 Super Duty XL 7.3L No Power VIN: 1FDAF57F52
P0472: Exhaust Backpressure Sensor Circuit Low Input. ... Powerstroke with low / no turbo boost under acceleration most of the time. When initially started cold and first time down the block you can hear / feel turbo spool up and then shortly after power drops off. Fuel pressure at housing is 55 psi, drops to may...
December 23, 2013