legacycentral bbs

Posted: **Mon Apr 22, 2002 11:14 pm**

The two terminal valve was found only on the '90 models in '91 and
up the three wire valve was used. From what I can remember this valve
works on what is called PWM (pulse width modulation) the center wire
is at 12 volts and the ends are switched with a signal that pulses
from 12 volts to ground the longer the ground pulse the more the valve
is pulled in that direction.
AL(CO)

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Posted: **Mon Apr 22, 2002 11:34 pm**

Al,

That sounds about right.....I've heard a couple discussions about it using a duty cycle as well. Which the PWM could be what they were talking about.

************************************
Josh Colombo
Josh@surrealmirage.com <mailto:Josh@surrealmirage.com>

"Life, an ever-changing melody
of beats and rhythm" - ME
************************************

-----Original Message-----
From: milehial2000 [mailto:acroxford@hypermall.net]
Sent: Monday, April 22, 2002 108 PM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: [BC-BFLegacyWorks] Info on the idle air control valve

The two terminal valve was found only on the '90 models in '91 and
up the three wire valve was used. From what I can remember this valve
works on what is called PWM (pulse width modulation) the center wire
is at 12 volts and the ends are switched with a signal that pulses
from 12 volts to ground the longer the ground pulse the more the valve
is pulled in that direction.
AL(CO)

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BC-BFLegacyWorks-unsubscribe@egroups.com

------------------------ ---------------------~-->
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FREE Money 2002.
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Posted: **Tue Apr 23, 2002 8:54 am**

They call it duty cycle when it's refered to in percentage of time on
and off so that's it. A scope is needed to see it They give a voltage
in the manual and that's a rather inaccurate but probably close
enough.

--- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> Al,
>
> That sounds about right.....I've heard a couple discussions about it
using a duty cycle as well. Which the PWM could be what they were
talking about.
>
> ************************************
> Josh Colombo
> Josh@s... <mailto:Josh@s...>
>
> "Life, an ever-changing melody
> of beats and rhythm" - ME
> ************************************
>
>
> -----Original Message-----
> From: milehial2000 [mailto:acroxford@h...]
> Sent: Monday, April 22, 2002 108 PM
> To: BC-BFLegacyWorks@y...
> Subject: [BC-BFLegacyWorks] Info on the idle air control valve
>
>
> The two terminal valve was found only on the '90 models in '91 and
> up the three wire valve was used. From what I can remember this
valve
> works on what is called PWM (pulse width modulation) the center wire
> is at 12 volts and the ends are switched with a signal that pulses
> from 12 volts to ground the longer the ground pulse the more the
valve
> is pulled in that direction.
> AL(CO)
>
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@e...
>
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/

------------------------ ---------------------~-->
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