Polo 1.2 TDI Egr Fault

[Dylbo1234]

Recently I broke down after the engine management light come on , I called out the AA and they plugged it in and described I had an egr fault , at this point the car wouldn’t start. (Error code - P0405)

The AA Mechanic said he unplugged the egr so then it started and I could drive it home , I then got a mobile mechanic to come and map out the egr , after mapping out and the egr plugged back in the car starts but after revving when the revs go down stalls again , I left the car as the mobile mechanic was due to come back to fix , I tried the car the next day started but not stalling anymore after revving

This time the issue is there is a very noticeable power loss on the acceleration going from 0-1.5 revs it’s like a second or two to get over 1.5 revs which obviously on a hill is then causing me to stall

Any help or ideas what could be wrong no error codes are showing as of now

[iichel]

the egr valve mechanism is mechanically broken. no software fix is going to fix that. probably jammed open. best fix is to replace the egr valve/cooler regardless of the sw fix.

[Dylbo1234]

Is replacing it fairly easy to do by yourself ?

[iichel]

not really. you'll need to either take out the right hand side drive shaft or the particle filter.