[Diy_efi] Pulsing a K-jet cold start injector?

[Torbjörn Forsman]

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/
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>     Subject:  /[Diy_efi] Pulsing a K-jet cold start injector?/
>     Date:  /Tue, 31 Jan 2006 09:24:54 -0300/
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>     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.
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