apexivafc04 said:
To all sifus again, my setting for fuel pressure regulator(FSE brand) is 36psi. Sometimes when i run my car and stop then check the pressure it drop to 30psi. The car power will feel sluggish, so i increase the pressure to 36psi again and run the car again to see what is the pressure and to my horror is pressure jump to 42psi...(headache).. So sifus.. it is due to the fuel pump or the fuel pressure regulator? Also everytime i stop the car i can smell petrol from the engine bay..Thanks and cheers!
If your FPR oso cannot stay constant.. better check a lot of stuff.
petrol from engine bay? check fuel lines...
Pressure not regular? Measure voltage to FPR.. or check fuel pump.. if voltage fluctuates, or the pump is not working properly/tersumbat.. can also cause the pressure become irregular....
Could also be electrical gremlins causing all that stuff on the FPR.
Have to check each and everyone for problems.. then change the setting of the FPR.. simply using the FPR to compensate for fuelling will inherently fail.
Like others have said.. if pressure also cannot keep constant.. there's probably other problems.