Mitsubishi Eclipse Workshop Manual page 75

FUEL
-
Troubleshooting
13-1
1
o
o
o
o
o
o
o
O
..H4,
1.
Replace
the
engine control
unit if a
malfunction code is output although the insp€ction
rerreals
that there
is
no
problem
with the check
items.
2.
The Code Nos. are indicated sequentially from the
lov\rerest one.
Diagnosis Chart
Output
preference
order
Diagnosis
item
Malfunction code
Check items (Remedy)
No.
Memory
1
Engine control unit
(Replace engine control unit)
2
Orygen sensor
l1
Retained
o
Harness and connector
.
Fuel pressure
.
lnjectors (Replace if defectire.)
.
Intake
air
leaks
o
Oxygen sensor
3
Air flow
sensor 12 Retained
.
Harness
and connector
(lf
harness
and connector are normal, replace
air flow sensor
assembly.)
4
Intake air temperature
sensor
13 Retained
a
Harness and connector
o
Intake air temperature sensor
5
Throttle position sensor
14
Retained
o
Harness and connector
o Throttle position sensor
o
ldle position
s'witch
6 Engine coolant
temperature sensor
2',| Retained
.
Harness and connector
.
Engine coolant temperature sensor
7
Crank angle sensor
22
Retained
o
Harness
and connector
(lf
harness
and connector are normal. replace
crank angle sensor
assembly.)
8
Top dead centre sensor
(No.1
and No.4 cylinder
sensor)
23
Retained
a
Harness and connector
(lf
harness
and connector are normal. replace
crank angle sensor assembly.l
I
Vehicle speed
sensor
(reed switch)
24
Retained
o
Harness and connector
o Vehicle speed sensor (reed
srvitch)
10 Barometric
pressure
sensor
25
Retained
o
Harness and connector
(lf
harness and connector are normal. replace
barometric pressure sensor
assembly.)
11
Detonation sensor
3r
Retained
a
Harness and connector
(lf
harness
and connector are normal, replace
detonation
sensor.)
12 lnjector
4',\
Retained
o
Harness
and connector
.
Injector coil resistance
13
Fuel pump 42
Retained
o
Harness and connector
.
Control relay
14 lgnition coil,
Power
transistor unit
44
Retained
o
Harness and connector
o lgnition coil
o
Ponrrer
transistor
'2
15
Normal
state
NOTE
@
Mitsubishi
Motors
Corpor.tion
Apr. 1991 PWUE9010