I know, But once the switch had gone mad, so my dad went to the nearest roadside person avalible.
Learned it the hard way thou, had to replace the entire fueling system almost.
Fuel tank cleaning, Fuel pump replaced, Fuel filter replaced, 2 fuel injectors replaced,. Then finaly the car got back to normal.
PS: No more CNG cars, 2 of our cars were stolen only because of CNG kits.