Postby sMASH » October 27th, 2015, 7:06 am
Now that no sensors showing faulty, I feeliing more confident that there is a physical restriction in the fuel system.
Slacken the fuel line going into rail and put it into a bottle. Put thr car in thr on position and let thr fuel pump come on. It should start to pump into the bottle. Block the hose with ur thumb to let the pressure build to gauge how much pressure the pump is generating. Also, it should hage been sending a good flow into the bottle before that.
If ur getting a good flow and pressure supply at that point that means its not a clogged pump strainer or fuel filter.
Connect back the fuel hose to the rail. Now disconnect the line returning to the tank after the fuel pressure regulator, and route it to a bottle. Put Tue car in on and let the pressure build up. It not suppose to have much of a flow at this point if any. Then start the car. U suppose to get a small flow as excess pressure is being bled off. Rev the engine past ur two thousand rpm. U suppose to still get a smaller flow. If ur still getting atheists same flow as before that means the pressure regulator is not restricting the fuel from dumping off. if u still get poor performance block the return line with ur thumb and rev the engine to see what goes on. If it works better then ur fuel pressure regulator is faulty. If it works he same then it is past my little trouble shooting skilz.
