Stumped

[Samtraxx1]

Have a 2000 ledabre getting code p0401, egr is new, tubes are clear, map sensor doesn't show much change in pressure, which makes me think I might have a blockage in the pcv port somewhere, has anyone else experienced this, and if so how did you correct it

 

[Homer Jay]

To confirm you cleared the code and it comes back? If yes, check the wiring and electrical connection at the EGR valve.

 

[Samtraxx1]

To confirm you cleared the code and it comes back? If yes, check the wiring and electrical connection at the EGR valve.

Changed that too, soldered them connections

 

[Bob Connolly]

Following I have same issue in 05 LeSabre.

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[HotZ28]

Following I have same issue in 05 LeSabre.

OBD-II Trouble Code: P0401 Insufficient EGR Flow

 

[DMR]

Try this:
1 Unplug EGR
2 turn on ignition(no start) 3. run scan 4. clear codes 5. Shut off ignition 6. re connect egr
7 run scan(may have Po4o3 code 8. clear codes
Worked for me, did not have egr code again