In Emergency Peugeot 306 HDI

Hello friends, I have a Peugeot 306 HDI that does not let me accelerate more than 1500 laps, it is the typical failure when it has an injection problem, the injection light is permanently left, even when putting in contact to start, it starts but does not turn off anymore and is failing or if it strength. What is people in Spain for a long time have been working in this type of engines, the question is how and where I can measure the fuel pressure or the valve that has the pump out of the pump or the sensor it has on the injection ramp. The injection is Bosch.
I probate with another caudalimetro and valve of EGR that had new in the workshop and nothing followed the same.
Speaking some Aid Atte: July

Hello, how are you doing? Look for what you are doing, not more return, go straight to the pressure sensor, take it out and test it with a tester, or if you probate with changing the pressure sensor for a new one and see what you do, I hope you can solve it, a huge greeting!
Diesel Simòn.-
Pablo Simòn, Eduardo Castex, La Pampa, Argentine Republic

Thanks for the quick answer, do you tell me to test the sensor that goes on the ramp? He has three pins, such as and what kind of proof, you know resistive values ​​or measure continuity. Tecuento that I take it out and I have it in my hand, I also take out the valve that is behind the high pressure pump and have two pins, can it be tested ??? A hug. JULY

Hello, how are you, look at the pressure valve the only way to try it is to have a pulse generating source, because it works with current pulses, nor do it occur to you to put 12 V, heh, and the pressure sensor can try continuity or you can simply try a new one, they are not expensive, well I hope you have served you, a hug! Pablo Simón.-

Thank you for the answer, I tell you, the injection light does not turn off at all, now it does not start anymore, I do not get injection pulses. If I keep it, it starts engines through the filter hose is kept underway, the injection comes to the injection 7 V and the pipes arrives diesel but it does not start is like they did not receive injection pulses. When I started regulating but it accelerated anything. Can't it be the relay that has behind the switchboard? I await an answer and thanks again. JULY