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P1408 Diagnostic Trouble Code Discussion for February 2009

Manifold Absolute Pressure Sensor Signal Performance

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Trouble Ticket Help Requests for DTC P1408
Help Request Posted
2004 Lincoln LS 3.0L MIL Lamp on VIN: ILNHM86S04
P1408: EGR Flow Out Of Self-Test Range. Hi techs, I have a P1408 Dtc coming up in the KOER test with my scan tool. I am not sure on how this type of egr valve works. I can't seem to find a lot of info on the system. The system uses a Dpfe and a solenoid controled by the pcm to open the egr valve wit...
February 23, 2009