...

Im sorry.... my mistake i ment to say the AC.... but how come it takes power
from the engine.. shouldn't it take power from somthing like the
battery or alternator?

Ryan
KC8PKZ
RyanPM@...

The AC compressor runs off a belt off the engine.
So does the anternator, so running an electric motor would be no more
efficiant, since all the electrical energy the alternator puts out
also comes from the engine.
The battery just stores excess electrical power from the alternator
also.
Basically all the energy the car uses come from the engine.

Having the AC on in any car will take power from the engine. the
amount of power that it takes to run the AC compressor is directly
taken from the engine and there's no way to avoid this...good luck.

I am a bit surprised that the EMM does not cycle the compressor off
during hard acceleration.
This is a fuel econnomy trick that started in the late '8's or
early '90s.
I will have to "play" with my CR-V to see if it does this or not.

if your saying ..

if you have the air on... and it should shut off momentarily during
excelleration.... IT DONT.... lol getting on the freeway with the air on is no
no...

Ryan
KC8PKZ
RyanPM@...

If it was designed to do this, it would shut oiff the compressor
only, not the fan. Most people would not notice it happening.
The first cars with this just used the "Kick-down" switch on the
accelerator. Now they let the computer figure out when to do it.

So that's what that switch on the floor underneath the accelerator pedal
on my old truck ('85 Toyota) was for. I guessed it was for the rev
limiter. Of course I'm no automotive expert and I'm not sure how a rev
limiter works. Excuse my ignorance if I'm completely wrong about the
above. I was sure everything today now works off the computer.
David B