ebay cheep diesel power chip

[the evil twin]

ok heres a dumb question for you in the know.
Chipn an RD28T, some of the posts are saying about the chip being for CRD only.
Heres the dumb bit, what is the difference between the diesel injection systems and how do you know which one you have ???


Cheers Pete

CRD is "common rail" IE the fuel is delivered in a common rail connecting all 4 injectors and teh injectors are fully electronically controlled. It is still a direct injection tho IE fuel mist directly into the chamber. The posts in question are referring to the MY07 and later ZD30 CRD engines

Non CRD has a seperate fuel feed to each injector and the pump pressure controls the injection

Typically CRD's operate at significantly higher fuel pressures giving better atomisation and burn patterns etc etc. Their injectors also cost a small fortune or your first born

As a point of interest most of the "cheap chips" and some of the expensive ones (rip offs) are simply variable resistors that up the fuel pressures so you get more bang. The expensive legitimate chips will use multiple inputs to remap the injection signals from the ECU