2000 ford excusion power srtoke

Have code po 1670 anyone have a clue

P01670-EF Feedback sighnal not detected. This means that the IDM (Injector Driver Module) is not communicating with the PCM. Most of the times the problem is the IDM, but with the part costing a few hundred bucks, it's probably better to have a dealer tech. diag it to be sure.