Peugeot Boxer HDI 2007

Hello friend, I am a mechanic here in Costa Rica and I have a workshop of Echo I have a car of this type would be important that contributes to us the reference code of the faya, and we can help you, and it would be good to check the caudalimetro also known as a air fluid sensor it has double function measures the amount of air that is passing through the hose that comes from the admission and the air filter then also measures the air temperature.

Well, thinking everything that I got, I would look at the stop valve in the injection pump, if the failure is only partial, it can be the command rel of that valve that is heated.
By the way test with another relay, because when checking it, it always seems to be ok.