Engine Diagnostic Procedure - Lotus TURBO ESPRIT Service Manual

SECTION EMA
Page
9
a
. .
E M A
.3.
-
ENGINE
DIAGNOSTIC PROCEDURE
Before carrying out detailed diagnostic check, ensure engine management system i s within
specification.
COLD
START
PROBLEMS
Weak battery (recharge
or replace)
I
Possible causes:
I
'
+
2
v,
(3
Fuel pump electrical
circuit
I
Leak i n intake manifold
Cam timing incbrrect
I
A
Distributor cap
High tension leads
Rotor
Spark plugs
Cold start malad justment
Control pressure, too
low
Fdel pump capakity
unsatisfactory
Fuel lines (filter)
clogged
B
C
C O
misad justment
I
Thermal switch incorrect
I
. H
I
HOT START
PROBLEMS
Possible causes:
Fuel pump electrical
circuit
Leak
in
intake
manifold
Spark plugs
I
Cold start maladjustment
Cam timing incorrect
Control pressure
incorrect
Fuel system,
external leakage
Fuel system
internal leakage
I
C O maladjustment
,
I
Thermal switch incorrect
a
. .
APR 1987