Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 330
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-519
CRANK
SENSOR
22
Crankshaft
position
sensor
*1
•
Engine: cranking
•
Tachometer: connected
Engine speeds
displayed on
the scan tool
and
tachometer are
identical.
Code No.
P0335
Engine: idling
Engine coolant
temperature is
-20
°
C (-40
°
F)
1,300
−
1,500
r/min
Engine coolant
temperature is
0
°
C (32
°
F)
1,300
−
1,500
r/min
Engine coolant
temperature is
20
°
C (68
°
F)
1,300
−
1,500
r/min
Engine coolant
temperature is
40
°
C (104
°
F)
1,040
−
1,240
r/min
Engine coolant
temperature is
80
°
C (176
°
F)
600
−
800 r/
min
CRANK
SENSOR
2
38
Crankshaft
position
sensor
•
Engine: cranking (at less
than 2,000 r/min)
•
Tachometer: connected
The speeds
indicated by
the scan tool
and
tachometer
match.
Code
No.P0335
CRANK.
SIGNAL
18
Cranking
signal
(ignition
switch-ST)
Ignition switch:
"ON"
Engine:
stopped
OFF
Procedure
No.31 <M/
T>
Procedure
No.32 <A/
T>
<M/T>
<A/T>
Engine:
cranking
ON
MUT-II SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-520
ECT
SENSOR
21
Engine
coolant
temperature
sensor
Ignition switch:
"ON" or with
engine running
Engine coolant
temperature is
-20
°
C (-4
°
F)
-20
°
C (-4
°
F)
Code No.
P0115,
P0116,
P0117
Engine coolant
temperature is
0
°
C (32
°
F)
0
°
C(32
°
F)
Engine coolant
temperature is
20
°
C (68
°
F)
20
°
C(68
°
F)
Engine coolant
temperature is
40
°
C(104
°
F)
40
°
C (104
°
F)
Engine coolant
temperature is
80
°
C (176
°
F)
80
°
C (176
°
F)
ENGINE
LOAD
37
Volumetric
efficiency
•
Engine
coolant
temperature
•
Lights,
electric
cooling fan
and all
accessories
: OFF
•
Transaxle:
neutral (A/T)
Engine is idling 15
−
35%
-
-
2,500 r/min
15
−
35%
Racing
Volumetric
efficiency
increases
according to
amount of
revving.
MUT-II SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-521
HO2S
BANK1
S1
39Heated
oxygen
sensor (bank
1, sensor 1)
Engine:
warming up
(Air/fuel
mixture is
made leaner
when
decelerating,
and is made
richer when
revving.)
When at 4,000
r/min, engine is
suddenly
decelerated.
200 mV or less
→
600
−
1,000
mV (After
several
seconds have
elapsed)
Code No.
P0130,
P0133,
P0134
Engine:
warming up
(the heated
oxygen sensor
signal is used
to check the
air/fuel mixture
ratio, and
control
condition is
also checked
by the PCM
<A/T> or ECM
<M/T>.)
Engine is idling Voltage
changes
repeatedly
between 400
mv or less and
600
−
1,000
mV.
2500 r/min
HO2S
BANK1
S2
69Heated
oxygen
sensor (bank
1, sensor 2)
Engine:
warming up
Revving
0 and 600
−
1,000 mV
alternate.
Code No.
P0136,
P0139
HO2S
BANK2
S1
11
Heated
oxygen
sensor (bank
2, sensor 1)
Engine: Warm
(air/fuel
mixture is
made leaner
when
decelerating,
and is made
richer when
revving.)
When the
engine is
running at
4000 r/min,
decelerated
suddenly.
200 mV or less
to 600
−
1,000
mV (After
several
seconds have
elapsed)
Code No.
P0150,
P0153,
P0154
Engine: Warm
(the heated
oxygen sensor
signal is used
to check the
air/fuel mixture
ratio, and
control
condition is
also checked
by the PCM
<A/T> or ECM
<M/T>)
Engine is idling Voltage
alternates
between 400
mV or less and
600 - 1,000
mV.
2,500 r/min
MUT-II SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-522
HO2S
BANK2
S2
59Heated
oxygen
sensor (bank
2, sensor 2)
Engine:
warming up
Revving
0 and 600
−
1,000 mV
alternate.
Code No.
P0156,
P0159
IAC
VALVE
POS
45
Idle air
control
(stepper)
position
*2
•
Engine
coolant
temperature
: 80
−
95
°
C
(176
−
203
°
F)
•
Lights,
electric
cooling fan
and all
accessories
: OFF
•
Transaxle:
neutral (A/T:
"P" range)
•
Engine:
idling (when
A/C switch
is "ON." A/C
compressor
should be
operating)
A/C switch:
"OFF"
2
−
25 steps
-
-
A/C switch:
"OFF"
→
"ON"
Increases by
10
−
70 steps
A/C switch:
"N"
→
"D"
Increases by 5
−
50 steps
IAT
SENSOR
13
Intake air
temperature
sensor
Ignition switch:
"ON" or with
engine running
Intake air
temperature is
-20
°
C (-4
°
F)
−
20
°
C (
−
4
°
F)
Code No.
P0111
Intake air
temperature is
0
°
C (32
°
F)
0
°
C (32
°
F)
Intake air
temperature is
20
°
C (68
°
F)
20
°
C (68
°
F)
Intake air
temperature is
40
°
C (104
°
F)
40
°
C (104
°
F)
Intake air
temperature is
80
°
C (176
°
F)
80
°
C (176
°
F)
IG.
TIMING
ADV
44
Ignition coils
and ignition
power
transistor
•
Engine:
warming up
•
Timing light
is set (to
check actual
ignition
timing)
Engine is idling 7
−
23
°
BTDC
-
-
2,500 r/min
28
−
48
°
BTDC
MUT-II SCAN
TOOL
DISPLAY
ITEM
NO.
INSPECTION
ITEM
INSPECTION REQUIREMENT
NORMAL
CONDITION
INSPECTION
PROCEDURE
NO.
REFERENCE
PAGE
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