Mitsubishi Lancer Evolution X. Manual — part 247
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-53
SYMPTOM CHART
M1131151503134
CAUTION
During diagnosis, a DTC associated with other systems may be set when the ignition switch is turned
on with connector(s) disconnected. On completion, confirm all systems for DTC(s). If DTC(s) are set,
erase them all.
CAUTION
Disconnecting the battery cables or removing the combination meter will erase the learned value of
the fuel gauge. To recover the learned value, input a vehicle speed (by actually driving the vehicle or
inputting a simulated vehicle speed), and stop the vehicle. This will complete the learning process.
NOTE: Check that the ECM ground circuit is normal before checking for the cause of the problem.
NOTE: When the racing (2,000 to 5,000 r/min or more) continues on the vehicle stopped with no load during
the specified time or more, the increase in the engine speed might be limited. This comes from the engine
protection and control functions and is not a malfunction.
.
TROUBLE SYMPTOMS
INSPECTION
PROCEDURE
REFERENCE PAGE
Communication
with scan tool is
impossible
Communication with ECM only is not possible
1
Malfunction
Indicator Lamp
(SERVICE
ENGINE SOON or
Check Engine
Lamp) and related
parts
The Malfunction Indicator Lamp (SERVICE
ENGINE SOON or Check Engine Lamp) does not
illuminate right after the ignition switch is turned to
the "ON" position
2
The Malfunction Indicator Lamp (SERVICE
ENGINE SOON or Check Engine Lamp) remains
illuminated and never goes out
3
Starting
Cranks, won't start
4
Starts up and dies
5
Hard starting
6
Idling stability
(improper idling)
Unstable idle (rough idle, hunting)
7
Idle speed is high (improper idle speed)
8
Idle speed is low (improper idle speed)
9
Idling stability
(engine stalls)
When the engine is cold, it stalls at idle (die out)
10
When the engine is hot, it stalls at idle (die out)
11
The engine stalls when accelerating (pass out)
12
The engine stalls when decelerating
13
Driving
Hesitation, sag, Stumble, Poor acceleration or
Surge
14
Acceleration shock
15
Knocking
16
Too high CO and HC concentration when idling
17
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-54
.
PROBLEM SYMPTOMS TABLE (FOR YOUR INFORMATION)
IM240 test failure
Transient, mass emission tailpipe test failure
18
Purge flow test of the evaporative emission
canister failure
19
Pressure test of the evaporative system failure
20
Generator output voltage is low (approximately 12.3 volts)
21
Power supply system and ignition switch-IG system
22
Fuel pump system
23
Ignition switch-ST system and starter relay system <M/T>
24
Ignition switch-ST system and starter relay system <TC-SST>
25
Ignition circuit system
26
A/C system
27
Engine oil pressure switch system
28
TROUBLE SYMPTOMS
INSPECTION
PROCEDURE
REFERENCE PAGE
ITEMS
SYMPTOM
At starting
Won't start
The starter cranks the engine, but there is no combustion within the
cylinders, and the engine won't start.
Starts up and
dies
The engine starts, but then engine soon stalls.
Hard starting
Engine starts after cranking a while.
Idling stability Hunting
Engine speed doesn't remain constant; changes at idle.
Rough idle
Usually, a judgement can be based upon the movement of the
tachometer pointer, and the vibration transmitted to the steering wheel,
shift lever, body, etc.
Incorrect idle
speed
The engine doesn't idle at the correct speed.
Engine stall (die
out)
The engine stalls when the foot is taken from the accelerator pedal,
regardless of whether the vehicle is moving or not.
Engine stall (pass
out)
The engine stalls when the accelerator pedal is depressed.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-55
At driving
Hesitation Sag
"Hesitation" is the delay in
response of the vehicle speed
(engine speed). This occurs
when the accelerator is
depressed in order to accelerate
from the speed at which the
vehicle is now traveling, or a
temporary drop in vehicle speed
(engine speed) during such
acceleration.
Serious hesitation is called
"sag".
Poor acceleration Poor acceleration is inability to obtain an acceleration corresponding to
the degree of throttle opening, even though acceleration is smooth. Also
the inability to reach maximum speed.
Stumble
Engine speed increase is
delayed when the accelerator
pedal is initially depressed for
acceleration.
Shock
The feeling of a comparatively large impact or vibration when the engine
is accelerated or decelerated.
Surge
This is slight acceleration and deceleration feel usually felt during
steady, light throttle cruise. Most notable under light loads.
Knocking
A sharp sound during driving, which sounds like a hammer striking the
cylinder walls. It makes poor driveability.
At stopped
Run on
("Dieseling")
The condition in which the engine continues to run after the ignition
switch is turned to the "LOCK" (OFF) position. Also called "dieseling".
ITEMS
SYMPTOM
AKX01361
Vehicle
speed
Time
Normal
Hesitation
Sag
Initial
accelerator
pedal
depression
AC
AKX01362
Stumble
Idling
Vehicle
speed
Time
Normal
Initial
accelerator
pedal
depression
AD
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-56
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC P0010: Intake Engine Oil Control Valve Circuit
AK704290
1
2
3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
1
3
2
4
1 2 3
4 5 6
1 2
1
1
2
B-20
B-09
20A
WHITE
WHITE
WHITE
VIOLET
WHITE
A-34X
4
3
1
2
22
OFF
ON
AB
36
FUSIBLE LINK
2
A-39
MU802607
INTAKE ENGINE OIL CONTROL VALVE CIRCUIT
INTAKE ENGINE OIL
CONTROL VALVE
MFI
RELAY
RELAY BOX
(ENGINE COMPARTMENT)
ENGINE
CONTROL
MODULE
TO ECM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст