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Taurus Insufficient EGR Flow
I am getting DTC P0401 (Insufficient EGR Flow). I have replaced the DPFE Sensor, the EGR valve, and the EGR vaccum solenoid. The car has been working great for almost 2 days and all of the sudden, the CHECK ENGINE light turned on. I hooked my Actron code reader back up to the car and found the same P0401 error. What should I do now???
1999 Ford Taurus with
Duratec V6 24 Valve DOHC
Thanks,
Neal
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