Codes Check engine light

[Bob Saf]

The Code is that egr valve position circuit below minimum voltage.
I change the egr valve. The light still comes on. Does any one know if it is the Electronic vacuum regulator (egr postion sensor) or the Differential pressure feedback sensor (DPEE sensor causing the problem.

Thank for your help.

Bob S.

 

[slow-demon]

Probably the DPFE is faulty. A bad DPFE is more common than a bad egr valve regulator.

 

[Bob Saf]

I replaced the DPFE sensor (Differential Pressure Feedback Sensor) and the check engine light has not come back on.
Thank for your help.

Bob S
1994 XLT