When the fuel level in my car goes below 1/4 tank, it takes several attempts before the car will start. The pump was replaced two weeks ago and I was told that the sending unit is part of the pump and can't be replaced separately. I don't think that is correct. Could the problem be the fuel sensor/sending unit?
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OK. I have narrowed it down to the fuel pressure regulator, the throttle position sensor or the fuel level sensor.
Very good! keep us updated. :)