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  • simpilot1 02/24/08 6:18 am PST

    Additional things which might cause this problem are the fuel pressure regulator or a small vacuum leak resulting in the mixture being too lean to fire immediately. A stuck PCV valve could also cause a lean mixture.

  • 1986blazer 03/05/08 11:52 pm PST

    bad fuel pressure regulator, the regulator is not holding fuel pressure on the injectors

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