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I have both, the MAP sensor and the vacuum boost, in my Torque Pro. If I turn the key at On, but not starting the engine, the MAP sensor reading is 14.5 psi (atmospheric pressure) and the Vacuum indicates 0.4 psi. Not sure why then vacuum is not zero.
As for the engine load, I'm not sure if I understand what do you mean. For myself, I always think that the car is more efficient if I can drive it with less engine load for the same speed. Am I wrong ?
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