Fuel Pressure regulator
That is a cheap and easy thing to try. When blown it pulls gas into the engine through the vacuum hoses. Costs about $50.00. Put a rag over the regulator as you pull it out or you will get a face full of gas.
Check for gas in the hose leading from the regulator. If you pull off the hose and it smells like gas your regulator diaphragm is blown and letting gas through to the engine.
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2004 Alero 2.2 ecotec
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