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P0408 Diagnostic Trouble Code Discussion for April 2007

EGR Airflow Throttle Position Sensor Circuit High

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Trouble Ticket Help Requests for DTC P0408
Help Request Posted
2002 Ford F-150 XL 4.6L MIL Lamp on VIN: 1FTRW07W11
P0408: egr flow out of range. The truck gives a continuous P0408 (EGR flow out of range) I have replaced the EGR valve, EGR solonoid and the EGR sensor. I have checked egr vacuumn hoses for leaks. I have cleaned and blown the pipe on the exhaust side of the EGR valve.
April 26, 2007