Ford Probe EGR Valve Sensor

Have Paid More Than Car's Worth To Find Out All It Needs Is A Dpfe/egr Sensor...sent To Michegan For It Since Dealer Wanted 2 1/2x As Much...

I Had The Check Engine Light Come On, And It Was Code P0400, Egr Problem. I Had Another Used Egr Valve, Replaced It But The Light Came Back...

Check Engine Light On For A Couple Days Then Off For A Couple Days About 2 Months Now Codes P1195 (boost Sensor)and P1402 (valve Position...