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Old 05-11-2004, 12:52 PM   #1
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Default A/C question

I noticed the other day that when I kicked on my a/c the car didn't seem to loose much power - and I got thinking. If that'* the case, than the PCM probably accounts for the ac compressor being on and kicks things up a notch, right?

and if the PCM does that, is there a way to trick the PCM into thinking that the AC is on when it'* not? would you be able to send a dummy 12v to the right place and get a little extra oomph?

just wonderin -

matt
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Old 05-11-2004, 04:30 PM   #2
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You don't notice the AC as much as you would in a 4-cylinder or smaller V6 because you have decent power. The PCM doesn't make any adjustments to 'up' the power at all.
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Old 05-11-2004, 05:03 PM   #3
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I think the only thing it tells the PCM is to keep the idle up when you're at a stand still ( As my boost gauge runs higher with A/C on.. but to be honest.. all A/C robs power.)
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Old 05-11-2004, 07:59 PM   #4
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the AC systems probably dont take that much power to run, and we have plenty of torque and HP to nott notice it.
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Old 05-13-2004, 05:37 PM   #5
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Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by macho_mike21
the AC systems probably dont take that much power to run, and we have plenty of torque and HP to nott notice it.
I can fell it a bit but its never enough to slow either one of my bonnevilles down... On the interstate I can feel the compressor clutch cycle on and off, but its almost undetectable unless you paying attention to it.... But at the same time while in cruise I loose no speed when the compressor cycles on....lol The 2.0 Mitsubishi Galant is another story..
heh... must be too used to driving the shadow around...

bummer though, that it doesn't do anything extra for you when the a/c is turned on.

so it goes, so it goes.

matt
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Old 05-13-2004, 09:51 PM   #6
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used to be that way with my toyota but the bonnie never misses a lic
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