Lotus TURBO ESPRIT Service Manual page 403

SECTION LD
Page
37'
-
LD
24
-
FUEL INJECTION FAULT DIAGNOSIS
Note: When using this chart i t i s assumed that the general engine condition i s sat&factory
and ignition system is adjusted correctly.
It
i s also assumed that the electrical
system, including the safety cut-out circuit for the petrol iniection system, has
been checked and is i n good working condition.
Electric fuel pump faulty
'Cold'control pressure outside specification
'Warm' control pressure too high
'Warm' control pressure too low
Auxiliary air valve does not c l a e
Auxiliary air valve does not open
Cold start injector does not operate
Cold start injector leaking
Primary fuel pressure outside specification
Sensor plate rest position incorrect
Sersor plate and/or control plunger sticking
Vacuum system leaking
Overall fuel system leaking
Fuel iniector(s) leaking or opening pressure low
Basic mixture ad justment too r i c h
Basic mixture adjustment too lean
Throttle does not open/close completely
Thermo time switch does not close
Fuel by-pass valve
Throttle jacking capsule
Throttle position switch
A i r leaks i n exhausr/inlet
Throttle imbalance
E.C.U.
faulty. See electrical
LD 26/27/28