Fuel Vapor Pressure Sensor???

Discussion in 'Performance & Fuel' started by vncj96, Nov 2, 2009.

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  1. vncj96

    vncj96 New Member 1000 Posts 100 Posts

    What does this thing actually do, why does the ECM need to know the pressure for the EVAP system? I keep getting codes related to it, can it hinder MPG at all, I am having a hard time finding info on this damn thing.

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