Mercedes Benz ML270 CDI

Someone knows the pressure in the idle rail of this model
I need it because it does not turn on and does not present dtcs stored in the ECM and I think that the high pressure pump can be the problem

Hi Spino, I don't think you can measure the pressure on the CDI Rail for high pressure (more than 1000 bar ...), because of the danger it supposes, among other things. You should look for the failure, in an air intake in the pump feeding circuit (fuel feed body, filter, corners ...) since if there is not enough pressure, it would notice the pressing collector in ramp. Greetings!!!

Thank you for your answer
I tell you that I already replace all the toric joints and there was no change, changed the filter and nothing, and as I said it has no dtcs stored in the ECM and if you can measure with the adapters suitable to me it gives me 1230 bar the direct pressure of the pump but I need to know the pressure in rail at the idle I found in a tutorial on another Mercedes engine that was 350 bar in same if you have any other information, you appreciate
greetings from Nicaragua

Hi Spino, if it does not turn on, it can be a failure of a flow regulator that will carry the CDI, it is responsible for regulating and cutting gasoil, proof that 12 volt arrives. And it measures its resistance 4.5 OHMS, next to the fuel temperature probe, it also varys the pressure on the ramp according to diesel temperature, it is NTC, its cold resistance is 3 K.Ohms, hot 560 OHMS, then you should also carry a ramp pressure regulator: 3.8 OHMS, 12volt.
Finally, the pressing collector in ramp:
via 1 and 2 = 54 m.ohms
1 and 3 = 24 k.ohms
2 and 3 = 398 k.ohms
food 5 volts. In Via 3

*It is strange not to get DTCS ... I guess you have reviewed the circuit from the depositor of the deposit

Thanks Ismael I am going to check the pressure sensor and the regulator and I post any change but I suspect the injectors right now I am dismantling them but I only manage to take out 4 of 5 there is one that the present carbon has it already stuck already use extractor and nothing turns and nothing uses penetrating and nothing if you have any idea I appreciate cordial greetings from Nicaragua