It only starts when it has low temperature

Hello. Because of the symptom that you mean, it could be from a mechanical injection pump failure to a sensor, relay or module that when having high temperature, the circuit opens and no longer leaves flow. When the circuit cool is countered and re -gives way to the signal. The most appropriate is to connect the scanner and monitor it in real time to see what stops registering. If it is sensor failure or modules you have to record codes. If the failure is mechanical, it can cause codes to be registered, but not necessarily.

Hello, according to the symptoms you comment, I advise you to measure the pressure of your fuel pump, it is sure to be damaged by heating up ..

Your problem seems to be a problem with the water pump, these engines are prepared so that in the face of a motor temperature rise it is stopped. A test is quite simple, the motor starts in cold and put the top heating, you leave the engine torn until it stops. If you have no heating is that the water pump does not work.