Lotus TURBO ESPRIT Service Manual page 218

Page
7
0
ENGINE DIAGNOSTIC PROCEDURE
SECTION EMA
Before carrying out detailed diagnostic check, ensure engine management system i s within
a
specification.
UNEVEN
RUNNING
Possible causes:
2
POOR
PERFORMANCE,
LOW
TOP
SPEED
Possible causes:
Leak i n intake system
Air filter clogged
I
High tension leads
I
B I
Distributor cap
High tension leads
Cyl
i
nder compress ion
Spark plugs
Ignition timing incorrect
I
Cylinder compression
I I
I
Spark plugs
I
I
Cold start maladjustment
Cam timing incorrect
I
Incorrect control pressure
I
Cold start malad justment
I
Fuel
l
ines (filters) clogged
Cam timing incorrect
Fuel pump capacity
unsatisfatoty '
~- - -
Control pressure
maladjustment
Fuel lines (filters) clogged
Throttle or throttle
linkage misad justment
Incorrect balance
C O maladjustment
Fuel pump capacity
unsatisfactory
Incorrect vacuum control
of the control pressure
Throttle or linkage
malad justment
ENGINE
STALLS
-
Possiblecauses:
C O malod justment
I
Fuel pump electrical
circuit
EXCESSIVE FUEL
I
I
Leak i n intake system
I A l
Distributor cap
High tension leads
- - - - - -
CONSUMPTI
ON
- - - -
Possible causes:
a
I
=
9
2
m
0
Fuel lines- (filters) clogged
Fuel pump capacity unsatisfacto
Cylinder compression
Cold start maladjustment
I c l
B
Control pressure incorrect
-++
Ignition timing incorrect
CO maladjustment
APR 1987
G
C O maladjustment
'
G