Quote:
Originally Posted by zman
My question is the idle speed of the motor, will it change? And if so will it lower or increase? And am I going to see FE improvement when in idle?
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The idle speed will remain the same. The ECU keeps a certain idle speed and adjusts the amount of fuel to stay there. You can observe this by suddenly turning on a large load when in idle (defroster, lights, etc.). The sudden load slows the engine down, but the ECU adds fuel and the rpms go back to normal.
If you take off your alternator or AC belt, then the load on the engine will be smaller, so less fuel will go into keeping it at idle speed.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
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