Lotus TURBO ESPRIT Service Manual page 427

SECTION LD
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Page 55
9.
Air
Conditioning Compressor Operating.
A t
Idle. Above
70° C
Water Temp.
Similar to circuit
(5)
except:
A
feed from the compressor circuit i s directed via the idle up control relay to
energise the idle up relay.
This
cuts off the earth circuit for the a/c idle up
solenoid, which i s de-energised and opened.
This
circuit only operates below
1400
rpm.
10. Light Throttle. Over 3250
R P M
Similar to circuit
(6)
except:
The fuel enrichment module, supplied with a negative feed from the ignition
coil, senses when an engine speed of 3250 rpm i s reached, and allows an
ignition feed to operate the relay coil and close the relay contacts.
This
provides an earth signal to
E.C .U.
terminal
7.