Hello Guys

I have some problems with a caterpillar forklift model p5000 with motor nissan k25l that use GLP

I was make a maintance of the vaporizer, throttle body and reductor, too calibrate the valves.

When i try starting the engine, this won't start, i revised the vaporizer and the modular ignition coils but this appear to well.

The GLP arrives to the regulator, because if retired the injector, when the key is the on position, the gas out for here, but i have a doubt, the injector is a proportional valve or a two states valve (open-close), because i measured the voltage in the wires of this injector and i found 3 volts more less when the key is in the ON position, this is rigth?

I was making a test, i disconnected the wires of the injector and gave starter to the motor, at the same time plug in the wires to battery and the motor try run, but appear that if connect more the the injector to the battery the motor is drowning and the otherwise dont try run.

I think that the problem is of the injector, or the some part of the reductor, but i have doubt with the ECU and Throttlet body

What do you think about this? Some of yours have a service manual of this motor? for me is very important

Thanks for your time, and sorry for my bad english, i am learning

PD: The reductor is very similar at this http://a248.e.akamai.net/origin-cdn.volusion.com/kxtj9.rx7yg/v/vspfiles/photos/A6610-GX11A-2.jpg