My super crew F150 4 Door Truck died out on me twice at the traffic lights. My mechanic reckons the O2 sensors faulty (he wants to replace 4 of them) The check engine light is activated. Can anyone be kind enough to share their knowledge on this issue pls!

 

If the CEL is lit, run a scan....then the mechanic doesn't have "reckon" that an EGO sensor is faulty.