nissan dci egr problem

[VDO]

Hi friend I have nissan qashqai+2 1.5dci with dtc p0488 and p2101 i try replace parts with second hand egr and throttle and same error, is someone have some idea?

[neilp1990]

I haven't worked on one of these for a while last time I had was a dpf causing numerous problems. If i can remember please correct me if im wrong, both of the plugs are identical? if so just check they are the right way round also these Renault engines have been a nightmare for wiring. If you are able to I would run a diagnostic that can go abit more in-depth with the codes