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Unread 17-11-2005, 12:12
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Re: tachometer mystery?

Your ECM/PCM will probably open the throttle a little to compensate for the load if the RPM drops past a certain point, but if it's within the idle speed limits it will probably just rev a little lower.

In some smaller cars with 4-cylinders and low horsepower, you can notice the difference in acceleration when the A/C is on or off

Last edited by Greg McCoy : 17-11-2005 at 12:26.
 


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