01 ls lincoln engine code po401.clean egr valve and replace pressure sensor.reset light back.?

Question

01 ls lincoln engine code po401.clean egr valve and replace pressure sensor.reset light back.?

Answer 1

Recheck the DPFE sensor (delta pressure feedack something).Ford (Lincoln) has had many problems with them.Also check for TSBs (technical service bulletins) about your car with that code.I've replaced several hundred of those sensors (for P0401) with 100% success.

Answer 2

Yes

Answer 3

Don't know about pressure sensor ?? but the code would suggest the egr valve is closed and not operating. The code says egr flow insufficient