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P0470 Diagnostic Trouble Code Discussion for July 2007

Exhaust Backpressure Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0470
Help Request Posted
1999 Ford F-450 Super Duty Lariat 7.3L No Start VIN: 1FDXF46F1X
P0470: Exhaust Backpressure Sensor Circuit Malfunction. This truck will start cold with extended crank to build up oil pressure looking at scan tool ipr starts 15% during crank # goes too 65% if injector control pressure gets to 285psi it will start. The pressure look good 485-515 at idle rev it up pressure top out...
July 30, 2007