Got engine light P0401 EGR System: Insufficient flow, So i replace the electric EGR pierberg with a new original, reset the light but it came back after 50miles, i clear the code a few times but the code P0401 came back after a while, the metel pipe been clean

Got engine light P0401 EGR System: Insufficient flow, So i replace the electric EGR pierberg with a new original, reset the light but it came back after 50miles, i clear the code a few times but the code P0401 came back after a while, the metel pipe been clean

Same HERE