91 Firebird cant keep it running

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Jul 7, 2010 | 11:25 AM

mb67

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Joined: Jul 2010

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91 Firebird cant keep it running

I have a 91Firebird, 5.0L auto with throttle body injection.I put a new fuel pump in, new fuel filter, new throttle positioning sensor, new fuel injectors and pressure regulator. Car will start but will kill if you don’t hit the throttle. If you keep pumping the gas pedal, you can keep the car running but as soon as you put it to the floor, it shuts off the fuel and the car dies. If you let off the gas and let it idle, it shuts off the fuel and the car dies. The only way the car will keep running is if you keep moving the throttle upanddown. What is the problem?! Thanks. Mike

Last edited by mb67; Jul 8, 2010 at 11:20 PM.