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Look on top of the engine at the inlet side of the fuel line from the fuel tanj and you will fine a Fuel Pressure Regulator. have it checked. It sound like it is stuck open. It is suppose to open and close to regulate the proper pressure to each of the fuel injectors.

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โˆ™ 2007-08-08 16:35:02
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Q: What causes too much air in fuel rail in your 1993 Chevy lumina 31 multi port engine?
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