Question about 1994 Acura Integra
Had failed fuel pump. Installed new pump and car ran fine. After short while stopped starting. Checked newly installed fuel pump outside of car with battery voltage...pump runs strong. Re-installed pump and reconnected electrical plug to pump and both ignition fuses blow. Checked the continuity of the fuel pump relay. checks out ok. Checked for short to ground on positive going to pump - no short to ground. What is going on?
If the pump blew the fuses then the pump or the wiring to it inside the gas tank is shorted.
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Posted on Jan 02, 2017
SOURCE: 91 integra not starting
Hi,welcome to fix ya. this could be caused by the main (PGMFI) relay under the dash it controlls the fuelpump . There is a circuit board inside it that cracks and causes the fuel pump to shut off,
Posted on Apr 05, 2009
did you check the fuel pressur on the fuel rail with a gauge or did you just unplug the pressure reg..
also you should try replacing the fuel filter first... this is cheap 6-12 dollars autozone. just becuase the fuel pump is pumping doesnt mean it its enough. There mightbe a strainer on the fuel pump that might be plugged.
Posted on Jun 05, 2009
I think it's possible that the fuel regulator is stuck open and allowing the fuel to return to the gas tank. If your car is like mine (1991 Acura 1.8 engine), you can try this experiment: Pull the vacuum line off the fuel regulator (it's on the end of the fuel injector manifold and a hose connects to it to return gas back to the gas tank) and temporary plug the hose with a small bolt or golf tee. If the regulator is not stuck open it will make the fuel injector manifold at the highest pressure. Start the car and see if it dies or keeps running ok. If it runs ok then the vacuum control is not working right. If this doesn't help, try changing the fuel regulator valve or pull it out and test it with a vacuum off and on. When the vacuum pressure is present to the valve the valve is suppose to open slightly, this allows fuel to bypass the fuel rail and return to the tank.
Posted on Mar 22, 2010
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