1CD-FTV Topyota Top

Good afternoon.

My name is Daniel and I have been a user of this website who so gently share technical and manual information of so many models.

We are dedicated to technical service and spare parts of the Toyota brand and therefore, a turbodiesel corolla has fallen in our workshop with the 1CD-FTV Common Rail engine.

The serious thing of the case is that the car has passed before three workshops in which, they have destroyed the electrical installation, the motorized butterfly have changed and the injectors have changed, but the car that at first had a hard time starting, now, after much insist, starts, it is a couple of seconds and stops. But, there is always a but, I have accidentally discovered that if the high pressure pump fuel temperature sensor is disconnected, the engine starts and works (with the light of check on) but throws a black smoke curtain similar to a steam locomotive.

The scanner does not throw any failure and the injection tests and injection driver have been positive.

Wow, I hope someone can give me a hand.

Hello everyone, Daniel . The fuel temperature parameter is very important for the correct calculation of the required dose in a modern Common Rail engine ... The viscosity and density of the fuel change as it heats up ... which affects directly on the amount of fuel provided by the injury in a certain time. With the scanner with the truck stopped several hours, the bas of cmbustible must be equal to that of the admission air, with scanner connected contact on, without walking the engine. With this you can rule out a Temp sensor from the barefoot diesel, that is, with more or less resistance, than the nominal for that temperature. If after several hours of rest when both early air and diesel are the same, it is not that. If there are big differences, the above can be. The other checks with the scanner connected the pressure in the rail, approx 300 bar in idle, if it is quite superior, the ECU Motor, not being able to control the pressure in the rail, turn off the engine ... protect it and additionally I can tell you that in some common rail systems this happens without generating fault codes ... I supply to review fuel feeding system. Well luck and a cordial greeting ... the 18th is coming ...

Hello, for me, your problem is in the pump precion regulator to be safer you must install the scanner and check that precion that are around 280 to 320 precion bar if it is not in those values ​​the problem is there `for another Toyota has a module that works in the voltage of the injeetors when it is failing does not start or does not have reaction.

Thank you very much for your answers.

As the engine (with the temperature sensor connected) does not start, rather, try to start and be covered at two or three seconds, I cannot measure the pressure in the rail.

If I know, while the starter is rotating, the pressure reaches the maximum of 200 bar (20MPA is the unit that my scanner gives) and as soon as I release the contact key, the pressure falls to 0 immediately.

We are going to remove the pump and check valves and sensors to see if we can find the fault.

Hug for all.

We succeed !!! It took the solution due to a problem of resources from the owner of the car.

The problem finally appeared.
The pump was disarmed and damage caused by dirt (sand) in high pressure palettes were found. We did the corresponding repair.

After this, the system was armed again and the car was walking like the first day.