Lotus TURBO ESPRIT Service Manual page 236

SECTION EMC
Page
5
Water Tem~: inlet manifold below 6 0 ' ~
T U ~ D M A I
l-4
I
V A C U U M
-.
.-
--
1
To aid starting a cold engine,
the I.S.V. is de-energised
during cranking in order to
provide a plenum chamber
pressure signal to the
distributor for no vacuum
advance.
IGNITION
SOLENOID
VALVE
CARB.
EDGE PORT
CARB.
PLENUM
I
Water Temp: inlet manifold above 6 0 ' ~
~~ERM*L
thermostat
pipe below
7 0 ' ~
When the coolant temperature
(inlet manifold) reaches
6 0 ° C ,
the T.1.v~ changes over and
directs a throttle edge
drilling +acuum signal to the
distributor for normal
running ignition advance.
IGNITION
SOLENOID
VALVE