[urq] Injector Cooling Fan/Switch

[Bill Bennett]

and the injector cooling fan will run with the engine on too, after spirited
driving, and when the male connector falls(fails) outta the temp switch and
shorts to ground the fan will run until Mr.Battery is empty. HTH. Bill
----- Original Message -----
From: <CARDCONSYS at aol.com>
To: <urq at audifans.com>
Sent: Tuesday, November 16, 2004 11:22 AM
Subject: [urq] Injector Cooling Fan/Switch


>      The injector fan comes on whenever the separate injector fan
thermostat
> switch, mounted on the metal shroud near the wastegate, closes. It will
stay
> on as long as the switch is closed and even when the ignition is off. The
> switch on my car stuck on once and the battery drained! Take a look at the
wiring
> diagram in the red Bentley and it shows how it is wired. The fan is added
to
> avoid vapour lock in hot conditions primarily when the engine is off. With
the
> engine running normally, not just idling, there should be sufficient fuel
flow
> to provide cooling and prevent vapour lock but lock can still occur easily
in
> high ambient conditions with the engine off or under 'track' situations.
Seems
> unlikely to be the problem in this particular instance.
>      Martin Dapot
>      83 'Ur' Q
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