I have done so much to this engine. Checked MAP, its good, Replaced IAC, EGR, O2, Fuel pump. With a fuel pressure gauge it has 50psi,(with the new one and the old pump) the pump starts out good 50psi, then psi starts to drop and finally it dies. no I did not yet replace the fuel pressure regulator. I checked it and it holds vacuum, That does not mean its not good, I know. What I did do was pinch off the return fuel line back to the tank and no change, it should have increased the fuel pressure and maintain it at idle, but it did not. Voltage to the new pump is 13.1 and is constant. What else could be causing it run out of fuel?
Yes it does have duel tanks! How would you check to see if thats the problem?
Yes it does have duel tanks! How would you check to see if thats the problem?