Excess chevrolet fuel Combo 1.4 year 1999

Hello friends as they are, well, I tell you the following, it happens that I am trying to fix a chevrolet combo 1.4 year 1999. I know it is the same engine as the corsa B .. Well it happens that it had problems when the vehicle started and when it started it felt smell of gasoline, so we made change of oxygen sensor, coolant, we changed the regulating valve regulating fuel pressure Injectors with ultrasound and re -explain new spark plugs, check the resistance and voltages of the admission sensors (MAP - Regulatory valve slowed down) .. there was a improvement when the fuel pressure regulating valve was changed, I ask for help if there is a solution to this problem, please, good luck thanks.

I need you to tell me if it takes to start in hot cold if the spark plugs come out black if you are at sea level if you have had motor overheating problems if you have touched the engine at some point because you say you already have the entire electronic part, the entire electronic part.

Hello dear. Well when the Pressure Pressure Regulatory Valve had not changed, it took time to start either cold and hot. But now with everything something I improve, but when you give it the first game it takes more and hot and almost nothing takes to leave, but take out a spark plug and they are staining with black color fuel, I find myself at sea level in Iquique Chile .. but now you feel the raw smell of gasoline for the exhaust, something that previously felt in the cabin since it cost the starting the engine. I have not had problems with reheating.

I think that you should check the gas recirculation system, especially the EGR solenoid valve, this generally, when it has problems, it feels smell of fuel inside the vehicle, it also also checks the PCV valve because when it is stuck, it produces an overconsume in the vehicle, luck