Hello people so I had my 1.0 polo 6n2 for over 5 months now, my engine light has been on since. One thing I cannot get rid of is this most annoying fault code ever. Code 17811 EGR System: Regulation divergence: P1403, I have swapped 2 EGR valves, cleaned throttle body and egr valve pipe. Dont know what else to do any ideas? I have also included the picture of the error code.

Here's the fault finding guide for the EGR system

Exhaust gas recirculation system Testing.doc

Here's the fault finding guide for the EGR system

Exhaust gas recirculation system Testing.doc

Thank you! I've checked fuse #30 before but not the other two will have them checked and voltage measured. Don't have the test box for the last test. Will get back with the results asap

The test box referred to is just to make the contacts on the ECU plug easier to get at, you just need to get the plugs off the ECU and go direct onto the contacts of the wiring connector

had a look on the fuses all of them are ok. right now I'm ill, when i get better i will get my brother or someone to check the voltage with the multimeter see if thats the problem