Review on 🔧 Enhanced Performance EGR Valve - Delphi EG10026 by Jose Mcdaniel

As others have reported the valve I received caused the ECM to issue DTC P0401 for insufficient flow so I returned it. As an electronics engineer, I wondered why a new part could do this. After checking the feedback potentiometer (middle 3 pins) I found that the resistance values are very different compared to another Delco valve for the same application. This means that the ECM has received incorrect information about the position of the grub screw. Delphi should start learning how to build them and test them for quality because they are not up to date and don't cause problems.