P0401 AND P0406

[Peter Brown]

Oh! Yeah. I also changed out 2 4 inch vacuum hoses that connect to the sensor.

 

[Trainmaster]

Thanks. Your post compelled me to buy the Motorcraft part vs. aftermarket.

Glad it worked out. I learned that lesson the hard way. After two knock offs I was ready to sell the car. Bought a Ford New Generation Star computer that could read the DPFE output and learned the knock-offs were no good.