[Diy_efi] RE: 555 timer controlled EFI
dirtrider218 at hotmail.com
Sun Jan 22 20:33:53 CST 2006
The complex circuit with a bunch of sensors for a multi cylinder engine, or
the simple single cylinder version? The simple one is just a monostable 555
timer with a variable resistor and the chip output to a power transistor for
On a side note for anyone that noticed I havent been active for a few
days...I decided to use only a TPS for pulse width variation. I have the TB
from a Nissan that starts at 8.6K ohms closed and ends at 2.1k wide open.
I'm going to use a trimmer to get that up where I can use it. My pulse width
will only vary between ~3mS and 9mS per revolution(batch fire config, albeit
only one cylinder).
>Date: Sun, 22 Jan 2006 16:20:46 -0600
>From: Dale Mahan <dalemahan at charter.net>
>Subject: Re: [Diy_efi] 555 Timer controlled EFI
>To: diy_efi at diy-efi.org
>Message-ID: <43D4053E.5070106 at charter.net>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>Can somebody send me a copy of the schematic for the 555 EFI controller
>- or is it still being designed in-group?
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