[Diy_efi] CIS EFI via Fuel Pump PWM

Mike erazmus at iinet.net.au
Wed Aug 7 15:52:51 GMT 2002


At 09:57 AM 7/8/2002 -0500, you wrote:
>> yes, the discussion started with the aim of using fuel pressure
>> to control flow - ie. *instead* of PWM the injector the discussion
>> started about PWM the pump. You are right of course if you were
>> only PWM the injectors - a capacitor is beneficial, but not if
>> you wanted to modulate the pressure to control mixture...
>> rgds
>> mike
>
>I missed something also.  Was the intent to PWM the pump at a high
>frequency to get a variable fuel pressure, or to use the pump to
>actually create pulses of fuel?

The former - no discussion I can recall on the latter
mike


>don't forget about trimming replies...
>
>--steve
>
>-- 
>Steve Ravet
>steve.ravet at arm.com
>ARM,Inc.
>www.arm.com
>
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