Works like a 307 1.6 xr diesel

Hi friends, there is a problem coming to the press for 2 days, the vehicle is working normally on gasoline, but when it goes to LPG, it sounds like a diesel.

do it from injectors ... does it pass for a while

The injectors are connected to the air conditioner pipe, the sound is not important, but we cut the sound again.

Sir, I was wondering how they connected the injector to the air conditioner pipe, I wish you added a picture So it was surprising to assemble an aluminum piece :)

In other words, they mounted the injectors on the back of the engine and they attached it to the air conditioner pipe so that it does not move with plastic clamps.

I think the same problem is in me, how can we fix it like sound is too much