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Thread: Fuel Vapor Pressure Sensor???
11-02-2009, 04:33 PM #1
Fuel Vapor Pressure Sensor???
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.99 K1500 Suburban LT "THE BEAST"
Hypertech III, K&N, true dual
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