Question about 1991 Acura Integra Hatchback

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My car starts and runs then it wont go anymore and eventually stalls out. i changed the fuel pump all the fuel pump wires,the spark plugs ,the distributo ignitor,and the main relay. my teacher says drain the gas,i did . A full tank and its not the problem. what the hell is wrong with my car????????? it is a 91 acura integra,LS 1.8 dohc.....

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  • mike_doheny Sep 25, 2009

    it seems to be a mystery car..........

  • mike_doheny Sep 25, 2009

    so far nobody can tell me whats actually wrong with my car

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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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