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P0473 Diagnostic Trouble Code Discussion for June 2005

Exhaust Backpressure Sensor Circuit High Input

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Trouble Ticket Help Requests for DTC P0473
Help Request Posted
1999 Ford F-550 Super Duty Lariat 7.3L Poor Idle Quality, MIL Lamp on VIN: 1FDAF56F7X
P0473: Exhaust Backpressure Sensor Circuit High Input. ... the driver said it ran fine when it stalled at a stoplight, when he restarted it ran poorly and drove it to the shop. Next day I pulled code and tried to start it, it would not start. The code I got are P0473 exhaust back pressure circuit high, and P1293 i...
June 01, 2005