Golf 3 1.8 90km - Gasoline Start Issues: Replaced Liquid Temp Sensor, Fuel Pump, & More

Hello, I have a Golf 3 1.8, the car does not want to start on gasoline. Replaced the liquid temperature sensor, fuel pump, injection, on-board computer, engine harness, fuel filter, spark is there, I do not have any probe emulators and carbon and carbon simple control unit, gas works fine

Check if the injector is receiving power.
When you remove the dome from the throttle, you will see the injection. There are 4 wires to its plug: 2 for the temperature sensor and 2 for the injector supply.
The injector has a constant plus from the pump relay (there is only about 2 seconds after the ignition is turned on or how the shaft is spinning) and ground pulses from the engine control unit.
Usually, the plus line is cut by gas sellers and a relay is mounted on it, which disconnects the injector while working on LPG.
Check what is missing.
Enter the letter designation of the engine.

Is it possible to switch from gas to petrol, is it not working on petrol at all? Or maybe it just doesn't run on gasoline? Clarify.

How do you disconnect the battery for a while it fires?

grala1 can you check the power supply with a regular test tube? The point is that I do not have any gas / pb switch and it amazes me, the designation of the abs engine

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Paweł Wawa, it was impossible to switch from gas to gasoline because it went out immediately, now, when the car is standing in the garage and there is no LPG, because I stopped trying to find out what's going on with this gasoline ...

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andrzej 20001 does not help, disconnecting the battery for a moment, even for a few hours, does not help

Remove the mushroom from the mono-injection and see if it gives the injector. You have power and impulses on the internal pins of the plug going to the injector, measure with a 1.2W bulb.

andrzej20001 should I check after ignition? or trying to start the engine? I poured 100ml of gasoline into the intake manifold and it worked on gasoline, so I will not just inject the injection because the fuel is delivered

Put a light bulb there, as a colleague wrote, and let someone spin and see if it blinks. If not, one wire from the plug to the bulb and the other to the ground and turn again, then instead of ground, it is to the plus and turns again.

ok then right now go see, it must be 1.2v? or can it be the most ordinary test tube

The injector has only a voltage when it comes to the pump. If you have gas, the injector was probably cut off with the relay. Look where the wire is cut and go to the relay.

Gentlemen, the power supply is on the injection after ignition, each time it starts firing and you have to wait 30 minutes for it to be the same again. And the relay is sometimes not stag in the switchboard?

So what's missing - plus or weight?
If you want help, write specifics, no one will drag you by the tongue.
Maybe the relay is in the switchboard, but you did not deign to tell us what the Stag model is and what it is under the hood when it comes to LPG installations.
If there is no plus, maybe a relay or maybe cold February on its legs.
I doubt that there is a problem with its control, because it has power to the coil only when working on LPG.
Instead of asking the question if the relay is in the control unit, you would have reached the injector wires. The cable from the injector must be cut and switched on by the LPG control unit, only whether the relay is inside or outside, we do not know because we have too little data.