Possible causes – Damaged Engine Gas Recirculation (EGR) sensor – Damaged Engine Gas Recirculation (EGR) valve. – Engine Gas Recirculation (EGR) sensor harness is open or shorted – Engine Gas Recirculation (EGR) sensor poor electrical connection – Damaged powertrain control module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1402 FORD…