mitsubishi pajero cut-off during acceleration

hi to all the forum I have a problamatica on a mitsubishi pajero 2.5 turbo diesel year 2003 type 4D56t engine with mechanical pump with control electronic throttle km to the taghigrafo 220.000,

practically during the acceleration came towards the 4000 rpm is a sharp cut-off of fuel and the mototore does not break out until it goes to 1500 rpm and then starts to accelerate and begins again the defect, I've noticed that happens even with accelerated from a stop, the tests that have been carried out: diagnosis compiuterizzata ecu of the engine that found the defect on the absolute pressure can't remember the fault code but replaced a tube broken, the fault in the memory ? the most represented.

I temporarily plugged the egr and had no benefits, with a diagnosis in the active values, I do not lose the signal from the pedal accelletore, I do not lose the signal from the sensor turns, the temperatures of both the air intake that the refrigerant in the standard, the advance of objective and real are perfectly aligned and does not record any fault of course when that happens the defect,

I ruled out the power supply from the tank, causing it to go with a tank, I replaced all 4 injectors taken from a pajero is installed but nothing I'm going to riaccellerare and tac riavviene cutting,

the other thing that I noticed the problem does not happen when the engine is cold and when it warms up it starts to lose style shots nozzle blocked, but escudo the injectors to the evidence cited above, at this point, I think a problem with the fuel pump, but why then does it only when it warms up,

any advice or insight would be welcome thank you for your attention

The problem can be in the car electronic control of the pump

you did give a look at the pompista? it would seem to be a problem of pressure oil to the pump

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Originally Written by giuseppe1374

you did give a look at the pompista? it would seem to be a problem of pressure oil to the pump

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One other thing is when you did the test, excluding the plant with a tank you've excluded also the diesel filter? why? on those cars it lacks the support filter and is suck in air

It is, minus fuel filter and the fact that these pumps do not review only rotation I speak today with the pompista let's see what she says, I would replace the pump and take a blunder and not ? she

This ? a work from pompista and him you must ensure that the failure depends on the pump, and at this point, satisfied or refunded, and the rest of your work from all the controls that you have done the you have done well!

the pompista you can? to measure the pressure in the basis of the scheme and so to see if it needs to be replaced

Guys thanks for the tips I'll know

do a check from the pompista and then a review of the safe to the injectors

For the injectors has already? verified!

What ? a problem that can? be also bound to the catalyst of a challenge... if any ? with that car, since I don't know for sure. The pump, if I'm not mistaken ? a normal bosch classic press with the only electronic actuator, type VW golf 110cv to speak, and a part of the actuator that you put the new pump in ? rebuildable normally.

I happened to some of these cars that will ruin the pumping load on the inside of the pump itself and also riparandole after a while it returns to the same, and in some I solved by mounting an electric pump from 0.10 bar (type prefilter) that part on the ignition and I have not had the pi? trouble, you are about 40 euro.

Instead, other models have sort of a solenoid valve connected to the bridge between the tubes of the intake and exhaust of the pump. Sometimes it freezes and does not allow the normal flow of diesel... when I have the delete and do a nice classic link.

Of course, I illlustrato my case... even if ? normal that not all are the same, but at least you have some idea further with which to work.

guys, after a month of tribulamento I update the post after I sent the pump to rome on the bench electronic test (pump european union.) the pompista assures me that the pump ? working perfectly, I can't believe it, and I recommend looking at the sensor in the dismantling everything, I notice a strange wear on the sensor, I am going to also remove the crankshaft sensor here's the surprise, now reassemble everything with the sensor again and fingers crossed I present the outcome tonight

Guys problem solved the audio ruined, producing a square wave busted and cut l delivery tacci his������

same problem on a jeep 2.7 changing the starter motor mechanic bent the two fins of the crankshaft on the flywheel 2500 rpm then the cutting
solved looking at the shape of the wave generated by the sensors of the rpm
no dtc reported