Cold start injector on 87 CGT (KV)

[rob hod]

    Julian,

    If you look right next to the ignition coil you'll see a vacuum switch.
It has a live feed from the idle switch (live when throttle *not* at idle
red/yellow wire for idle switch) and is wired to the cold start live power
supply side. It's so designed as to only briefly conduct, thus giving the
CSV a brief spurt of power. There's no clever semicounductors involved, you
might say its a vacuum/mechanical approach. It works at all temps.

    HTH.


rob
----- Original Message ----- > --__--__--
>
> Message: 14
> From: "Julian Stafford" <julian.stafford at virgin.net>
> To: <quattro at audifans.com>
> Subject: Cold start injector on 87 CGT (KV)
> Date: Wed, 16 Jan 2002 12:59:49 -0000
>
>
> When opening the throttle with the engine cold, the cold start injector
can
> be heard to fire. I know this is a normal function to prevent engine
> hesitation.
>
> My question is what controls this function? My 89 MB urq has this function
> controlled by the ECU, but the KV does not have an ecu as such. Any
answers
> gratefully received.
>
> Regards Julian.