- Dec 29, 2022
- 6.7 powerstroke
2018 ford f350 6.7 powerstroke check engine light ( code P20EE ) on wont pass smog , took to local dealer they performed the emissions recall program work , and changed nox ( front) sensor . took truck home, issue came back, took back to ford the changed out another nox sensor ( rear) picked up truck, check engine light back on, took back to ford they changed out mass air sendor in air filter box , check engine light back on now same code P20EE- 2 different ford dealers have worked on my truck and have had it for a total of 24 days. PLEASE HELP ME!!!!!!!!!