IAC

[Mikey B Sorensen]

The problem with PWM is that the solenoid is going to die fast because of
wear.

On Tue, 9 Dec 1997 08:51:52 -0800 peter paul fenske <pfenske at direct.ca>
writes:
>PULSE WIDTH MODULATOR.
>A double 555 produces a variable PW.
>The wider the pulse the more the leak around the throttle
>the higher the idle speed..
>
>This prob won't work since these valves produce too
>small a leak.
>
>ccp is canister purge..
>
>gl:peter
>
>At 07:24 AM 12/9/97 -0600, you wrote:
>>At 02:41 PM 12/8/97, peter paul fenske <pfenske at direct.ca> wrote:
>>>Hey Gang
>>>
>>>Another thought why not use the vacum pwm modulator 
>>>that gm uses to control egr ccp ect. xrysler also uses em
>>>
>>>A double 555 cct can produce an adjustable pwm from 0 to 100%
>>>Use a LM2917 as a tach to voltage converter and then
>>>control your idle via a ref voltage. Gee we could use 
>>>a ctc to alter this ref as well as ac ps ect
>>
>>interesting concept .... what's ccp ? (looks like CCCP   ;-)
>>
>>I'm not familiar with these modulators, tell me more ... like what
>>to ask for, how they work ?
>>
>>
>>
>>
>
>