Toyota Duet 2000 ignition problem

From what you explain you can see the fuel pump, which does not send enough pressure to open the electroinjector, also check the spark plugs,

As I explain I think that the pressure is excessive since it does not find return what I imagine drowns the engine. I would like to know how the return system in this vehicle is .. Someone some idea please .....

Look first check if there is a spark in the spark plugs and then the fuel, there is always a return, it is most likely that in that model it has it at the other end of the injection ramp, if it puts a lot The cylinders, the other posivility if the car suffered from warmthons to some time is that the injection pulse is long and the vehicle drowns you, just check the following and let me know to determine the fault, first is there the spark plugs? When not starting and screwing a spark plug, it is dry or wet? The system always maintains a precion to prevent the ran from being discharged and it is difficult to start. For that, it has an empty valve that at one of its ends is at atmopheric pressure and in the other the fuel precion, when this fuel precion is greater than the admoferic opens the return pass.

Remove the hose that goes to the injector ramp and when the residual pressure left it connected it again .. Then I tried
to start and the engine worked for a moment and turned off again, then I started taking out
the spark plugs and it is seen that they are all black not as before they were usually clean

forced
something the engine and could have suffered some help but I still need it .... greetings ...