My ZD30(DDTi) 2953 engine has never run properly since purchased, ( Jan 14). It prefers to perform in limp mode after 20- 30 minutes. First VDC & Skid lights stayed on,Nissan replaced Common Rail Pipe and Relief Valve then injector pipes and No 4 Injector. Still goes into Limp Mode but Malfunction Light Came on for a few days (not Water in filter) Nissan is going to replace EG Valve now. Should the MAF sensor be cleaned as well, I am lost in the modern engines. I might see if my trade in has been sold yet, its a 93 Ford Maverick, the 4.2 Nissan motor had no turbo or electronics or problems. Just as well I have 12 months warranty left. Sorry for the whinge, who else can I tell, not my Missus of 43 years.