[Diy_efi] Pulsing a K-jet cold start injector?
Uo Park
uopark
Sun Feb 5 01:00:14 UTC 2006
Ernie,
are you still interested at converting CIS to EFI? I'm interested to
develope my own system too.
there are two options.
1. replace all the cis injectors to induction injector, this option cost a
lot and more works need to be done.
2. this is my idea type. instead of replacing all the injector, i will keep
the cis injector, but make a electroncal controlled fuel flow rate module.
the flow rate is controlled by a programmed controller. this is to avoid the
costly injector and complex triggering circuit.
if still interested, we can work together and get it done.
Simon
>From: "Ernest Buckler" <ebuckler at icehouse.net>
>Reply-To: diy_efi at diy-efi.org
>To: <diy_efi at diy-efi.org>
>Subject: Re: [Diy_efi] Pulsing a K-jet cold start injector?
>Date: Tue, 31 Jan 2006 20:32:41 -0800
>
>Jeff,
>Any chance you've converted one of these Audis to full EFI? The CIS is OK
>when it works, but crazy when some little problem makes it act up. I'm
>ready to convert my '89 200!
>Ernie
> ----- Original Message -----
> From: jeff matthews
> To: diy_efi at diy-efi.org
> Sent: Tuesday, January 31, 2006 6:51 PM
> Subject: Re: [Diy_efi] Pulsing a K-jet cold start injector?
>
>
> Thanks, didn't realize that...
>
> Kinda funny too cause in my driveway is 3 Audis, 2 87's and a 89, (all
>5KQT's)
>
>
>
>
>
>
> Best regards,
> JEFF
>
>----------------------------------------------------------------------------
>
> From: Torbj?rn Forsman <torbjorn.forsman at gengas.nu>
> Reply-To: diy_efi at diy-efi.org
> To: diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] Pulsing a K-jet cold start injector?
> Date: Tue, 31 Jan 2006 20:07:43 +0100
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> In fact, there are some factory applications where the cold start
>injector of a K-jetronic or KE-jetronic system is pulsed. For example, some
>of Audi's turbocharged 5-cylinder engines from the mid 80's. There, the
>cold start injector is pulsed during hot starts in order to avoid the risk
>of starting problems due to a vapor lock somewhere in the fuel metering
>arrangement.
>
> Anyway, i don't think the long-term reliability of a such injector in
>pulsed mode would be a problem. Probably, the interior parts are identical
>to a normal Bosch injector.
>
> Best regards
>
> Torbj?rn Forsman
>
> jeff matthews wrote:
> >NO, But I did use it connected to a 12V adjustable boost switch, and
> >adjusted boost up accordingly :) [as an extra injector]
> >
> >
> >
> >
> >Best regards,
> >JEFF
> >
> >
>
> >------------------------------------------------------------------------
> > From: /"Tomas J. Sokorai Sch." <tsokorai at xperts.cl>/
> > Reply-To: /diy_efi at diy-efi.org/
> > To: /diy_efi at diy-efi.org/
> > Subject: /[Diy_efi] Pulsing a K-jet cold start injector?/
> > Date: /Tue, 31 Jan 2006 09:24:54 -0300/
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> >Tue,
> > 31 Jan 2006 09:24:55 -0300 (CLST)/
> > Has anyone tried to PWM the cold start injector of an old
> >K-jetronic
> > (CIS) FI?
> > And if anyone has, how are the opening/closing times and any
> >ideas
> > about the
> > durability in pulsation mode?
> >
> > --
> > Tomas J. Sokorai Sch.
> > _______________________________________________
> > Diy_efi mailing list
> > Diy_efi at diy-efi.org
> > http://lists.diy-efi.org/mailman/listinfo/diy_efi
> >
> >
>
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