ECO mode MITSUBISHI SPYDER 1990 Service Repair Manual

CONTENTS
GENERAL DATA AND SPECIFICATIONS. .
HOW TO USE THIS MANUAL. . . . . . . . . . . . .3
Explanation of Manual Contents. . . . . . . . . . . . . .4
Model Indications
. . . . . . . . . . . . . . . . . . . . . . . . . . .3
Maintenance, Repair and
Servicing Explanations. . . . . . . . . . . . . . . . . . . . . . .
3
Special Tool Note. . . . . . . . . . . . . . . . . . . . . . . . . . .3
Terms Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Tightening Torque Indication. . . . . . . . . . . . . . . . .3
HOW TO USE TROUBLESHOOTING/
INSPECTION SERVICE POINTS. . . . . . . . . . . .6
Connector Inspection Service Points
. . . . . . . . . .10
Connector Measurement Service Points . . . . . . . .9
How to Cope with Intermittent Malfunctions . . .11
How to Use the Inspection Procedures
. . . . . . .
8
Inspection Service Points for a Blown Fuse . . .
12
Troubleshooting Contents. . . . . . . . . . . . . . . . . . . .6
LUBRICATION AND MAINTENANCE . . . . . . .33
MAIN SEALANT AND ADHESIVE TABLE
. .
MAINTENANCE SERVICE. . . . . . . . . . . . . . . . . .38
Air Cleaner Element. . . . . . . . . . . . . . . . . . . . . . . .39
Automatic Transaxle Fluid
. . . . . . . . . . . . . . . . . . .45
Ball Joint and Steering Linkage Seals
. . . . . . . .50
Brake Hoses.... . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Disc Brake Pads. . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Drive Belt (For Generator, Water Pump, Power
Steering Pump). . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Drive Shaft Boots
. . . . . . . . . . . . . . . . . . . . . . . . . . .50
Engine Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Engine Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Engine Oil Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Evaporative Emission Control System . . . . . . . . .
Exhaust System. . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Fuel Hoses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Ignition Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40
Manual Transaxle Oil . . . . . . . . . . . . . . . . . . . . . . . .
Rear Axle Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
Rear Drum Brake Linings and
Rear Wheel Cylinders . . . . . . . . . . . . . . . . . . . . . . .
Spark Plugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
SRS System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Timing Belt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Transfer Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
PRECAUTIONS BEFORE SERVICE. . . . . . . .20
RECOMMENDED LUBRICANTS
LUBRICANT CAPACITIES TABLE. . . . . . . . . .34
SCHEDULED MAINTENANCE TABLE. . . . .
SPECIAL HANDLING INSTRUCTIONS FOR
AWD MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
TIGHTENING TORQUE. . . . . . . . . . . . . . . . . . . .32
TOWING AND HOISTING . . . . . . . . . . . . . . . . . .22
VEHICLE IDENTIFICATION. . . . . . . . . . . . . . . . .13
Engine Model Stamping. . . . . . . . . . . . . . . . . . . . .15
Theft Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Vehicle Identification Code Chart Plate
. . . . . . .13
Vehicle Identification Number List. . . . . . . . . . . .14
Vehicle Identification Number Location. . . . . . . .13
Vehicle Information Code Plate.. . . . . . . . . . . . . .15
Vehicle Safety Certification Label
. . . . . . . . . . . . .15

ENGINE (NON-TURBO)>
TEST MODE
CHECK ENGINE/MALFUNCTION INDICATOR LAMP
As a functional test, the Malfunction Indicator Lam p
illuminates at key-on before engine cranking.
Whenever the Power-train Control Module (PCM) sets a
diagnostic trouble code that effects vehicle emissi ons, it
illuminates the
The PCM illuminates the for
diagnostic trouble codes that effect vehicle emissi ons. The
remains on until the diagnostic trouble code is erased.
The
either flashes or illuminates continuously when
PCM detects active engine misfire.
During active misfire, thePCM records the
operating conditions. The engine operating conditio ns
recorded by the PCM.
ItemsIndicated by the Check Engine/Malfunction Indicator Lamp
DTC No. Items
01No cam signal at PCM
02Internal controller failure
EGR solenoid circuit
EVAP solenoid circuit
Injector control circuit
20Injector control circuit
21Injector control circuit
25Idle air control motor circuit
26Throttle position sensor voltage low
27Throttle position sensor voltage high
30Engine coolant temperature voltage too low
31Engine coolant temperature voltage too high
32Upstream stays at center
35
No vehicle speed sensor signal
36
07) MAP sensor voltage too low
37MAP sensor voltage too high
39No change in MAP from start to run
42Ignition coil primary circuit
43Ignition coil primary circuit
46
EGR system failure
57Intake air temperature sensor voltage low
58Intake air temperature sensor voltage high
61Injector control circuit
62Upstream shorted to voltage
68PCM failure communications
71 temperature volts out of limit
, .
,
92 (PI 490)
93
101
33)
103
Low speed fan control relay circuit
High speed fan control relay circuit
Fuel pump relay control circuit
Upstream
response
Upstream
heater failure
Downstream
heater failure
Multiple cylinder misfire
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ENGINE (NON-TURBO)> Troubleshooting.
HOW TO READ AND ERASE DIAGNOSTIC
CODES
TSB Revision Caution
1. If battery voltage is diagnostic codes.
may not be output. Be sure to check the,
and charging system before
2.If the battery is disconnected or if the connector
is disconnected, the diagnostic trouble code
will be erased. Do not disconnect the battery or
until after the diagnostic are recorded.
3. Turn the ignition switch, off before
disconnecting the scan. tool.
When using the scan tool
NOTE
When carrying out inspection General ‘Scan Tool,
mode, the interface
cartridge) and
adaptor harness do not
need to be installed.
2.The following items cannot be checked in scan
mode; they can only be checked in General Scan
Tool mode.
SENSOR READ TEST
l term fuel trim
l Calculated load vlaue
FREEZ FRAME DATA
READINESS TESTS
3. When diagnostic trouble codes (DTC) are’ erased,
the freeze frame data and
test status will
be erased at the same time. Therefore,
should be recorded if necessary
4. If the automatic transaxle DTC
been stored, the DTC for the PCM should be
after the DTC for the TCM is erased:
1. Install the interface cartridge cartridge) to the scan
tool
2. Use the cartridge adapter harness to the
scan tool
to the data link
start the engine and on the
(if applicable). Shut off the engine.
3. Read the diagnostic trouble codes.
4.Repair the malfunction while referring to the
CHART FOR DIAGNOSTIC TROUBLE CODES.
5. Turn the ignition switch to OFF and then back to ON
6. the diagnostic trouble codes using the scan tool.
7. Check that the diagnostic trouble code is normal .

ENGINE (NON-TURBO)>
DTC No. DTC No. DTC No. Diagnostic items tool mode>
105 21Downstream
heater failure
106 43Multiple cylinder
misfire* Check items (Remedy)
M e m o r y
l
H a r n e s s a n d c o n n e c t o r
D o w n s t r e a m
lIgnition coil R e t a i n e d
l
Spark plug
Ignition circuitlInjectorlUpstream
Compression pressure
l Timing belt
l Crankshaft position
sor
l Air intake
l Fuel pressure
lCrankshaft position sen-
sor circuit and connector
107
43 Cylinder misfire*
l Spark plug R e t a i n e dlInjector
Compression pressure
l Air intake
108 43Cylinder misfire*l Spark plug R e t a i n e d
I n j e c t o r
Compression pressure
l Air intake
109 43Cylinder misfire*l Spark plug Retained
I n j e c t o r
Compression pressure
l Air
110 43Cylinder misfire* Spark plug R e t a i n e dlInjector
Compression pressure
l Air intake
112 64Catalytic converter
efficiency failurel E x h a u s t m a n i f o l d ( I f R e t a i n e d
there are no cracks, etc.,
replace the catalytic
converter.)
113 31 Evaporative purge flow
lEvaporative purge sole- Retained
monitor failurel
Clogged purge line
l Vacuum hose
l Evaporative emission
canister clogged
37 position
(PNP) switch (trans-
axle range switch)
failurel Replace PCMR e t a i n e d
.&
MIL: Check engine/Malfunction Indicator Lamp (MIL)
.
The number shown represents the number of pulses ob served at the
A diagnostic trouble code is recorded on the first detection of the
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ENGINE (NON-TURBO)> Troubleshooting
DTC No. DTC No. DTC No. Diagnostic i t e m s
Check items (Remedy) Memory tool mode>mode> .
115 65 Power steering pres- Harness and connector Retained
sure (PSP) switch fail-
lPower steering pressure
ureswitch
118 52Fuel system rich*l MAP sensor output R e t a i n e dlInjectorlFuel pressurelIntake air leakslHeated oxygen sensor
119 51Fuel system lean*lIntake air temperature Retained
sensor
l Engine coolant temper-
ature sensor
l E x h a u s t
manifold
cracked
126 21
128 17
Downstreaml H a r n e s s a n d c o n n e c t o r R e t a i n e d
shorted to voltagel Downstream
Closed loop tempera- lEngine coolant temper- Retained
ture not reached ature sensor circuit and
connector
lEngine coolant temper-
ature sensor
l Thermostat
21
24
11
Downstreaml Harness and connector Retained,
stays at centerDownstream
Throttle position sensorlHarness and connector Retained
voltage does not agreelThrottle position sensor
with MAP output
lMAP sensor output
Timing belt skipped 1 l
Timing belt R e t a i n e d
tooth or morelCrankshaft position sen-
sor and camshaft posi-
tion sensor
C o n n e c t o r
37
14
24
45 No 5 volts to MAP
l H a r n e s s a n d c o n n e c t o r R e t a i n e d
sensorlMAP sensor
No 5 volts to throttle lHarness and connector Retained
position sensorl
Throttle position sensor
EATX controller DTC l A u t o m a t i c transaxle Retained
present
control systemlHarness and connector
38 25Target idle not reachedlHarness and connector Retained
Idle air control motor
Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at ‘the,
A diagnostic trouble code is recorded on the first detection of the malfunction.
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ENGINE
Scan tool 31 .
Code General scan tool Engine Coolant Temperature
No.Sensor Voltage Too High
22
[Comment]
Backgroundl Sensor signal circuit open
Data from the engine coolant temperature sensor is used in most fuel and spark relatedl
Sensor internally openlcontrol functions.l PCM failedl When DTC is set, the PCM uses a default value as th e engine coolant temperature, andthe vehicle enters the limp-in mode.Range of Checkl Ignition switch: ON ,
Set Condition,lEngine coolant temperature sensor output voltage re mains more than for 3 seconds.
(Refer to
NG Replace
OK
Measure at the engine coolant temperature sensor lDisconnect the connector, and measure at the harnes s side.
l Continuity between 1 and ground
OK: Continuity
OK
OK
NG
NG
Check the harness wire between the PCM and the engi ne coolanttemperature sensor connector. Repair, if
Repair..
.
Check the harness wire between the coolanttemperature sensor connector.
[Comment] OK
Replace the PCM.
NG
Repair
Upstream Stays
Backgroundl
Sensor output voltage is checked.lIf voltage stays at center instead of switching, an open circuit is likely.
Range of Check
l 2 minutes after starting engine
l Engine coolant temperature: More than
Set ConditionNeither rich nor lean condition is detected from th e upstream heated oxygen sensor input.(Voltage is 0.5 volts for 1.5 minutes)
Check the heated oxygen sensor (front). [Refer to
l Heated oxygen sensor (front) Sensor signal circuit l PCM failed
OK. .
NGCheck the following connectors: Repair
Check trouble symptom.
Check the harness wire between Repair
sensor (front) connector.
OK
Replace the PCM.
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ENGINE , Troubleshooting
EEPROM Write DeniedProbable.
[Comment)l Unsuccessful attempt to write to an EEPROM location by the control module.l
PCMI
Replace the PCM.
Scan tool 57
Code General scan Intake Air Temperature
No.Voltage Low
23
[Comment]l Sensor to Backgroundl Sensor internally shortedlWhen the fuel system is in the open loop mode, the heated oxygen sensor cannot be
l PCM failed
used for injector pulse width calculation.
l In this instance, the system uses information on ai r mass to determine the correct
,
width necessary to achieve the proper air/fuel rati o.lBecause air mass is related to temperature, informa tion from the intake air temperature ,
sensor is necessary.
Range of Check
l Ignition switch: ON
Set Condition
lIntake air temperature sensor output voltage is les s than 0.2 for 3 seconds.
N GCheck the intake air temperature sensor. (Refer to Replace
OK
Repair
OK
Check trouble symptom.
N G
Check the harness wire temperature sensor connector.
OK
Repair
Replace the PCM.
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ENGINE (TURBO)
AND
ENGINE> Troubleshooting
DIAGNOSTIC BY TEST
(INCREASED SENSITIVITY)
When mode II is selected using the MUT-II, the chec k
engine/malfunction indicator lamp illuminates at the point when
the ECM detects a problem (except if the related
to emissions), and at the same time the correspondi ng
diagnostic trouble codes are stored.
Furthermore, in the case of comprehensive component
electrical faults (opens/shorts), the time from the occurrence
of the fault to the storing of the DTC is compresse d (4 seconds
1 second).
As a result of this, checking of the trouble symptoms
checking after have been completed are both made
easier.
Once mode II has been selected, it is necessary
ignition switch to OFF or to use the MUT-II to
I once more before mode I operation can resumed.
However, all
readiness test and frame
data will be erased after returning to mode
so this
should be recorded beforehand if necessary.
(1) Using the scan tool, changeover the diagnostic test mode
of the engine control module to DIAGNOSTIC TEST
MODE II. (INCREASED SENSITIVITY)
(2) Road test the vehicle.
(3) Read the diagnostic trouble code in the same ma nner
as “READ OUT OF DIAGNOSTIC TROUBLE CODE” and
repair the malfunctioning part.
(4) Turn off the ignition
NOTE
Turning OFF the ignition switch will cause the engi ne
control module to changeover the ECM from the diagn ostic
test mode II to the diagnostic test
Revision

ENGINE
A N D E N G I N E > .
FAIL-SAFE/BACKUP FUNCTION TABLE
When the main sensor malfunctions are by the diagnostic test mode, the vehicle is controlled
by means of the following defaults.
Malfunctioning item Control contents during malfunct ion
Volume air flow sensor
1. Uses the throttle position sensor signal and eng ine speed signal (crankshaft position
sensor signal) for basic injector drive timing and basic ignition timing from the
2. motor in the appointed position so idle air contro l is not performed.
Intake air temperature
Controls as if the intake air temperature is
sensor
Throttle position
sensor (TPS)
Engine coolant
temperaturesensor
Camshaft position
sensor
Barometric pressure
sensor
Knock sensor
Engine (Turbo)>
Ignition coil, power
transistor unit
Heated oxygen sensor
Heated oxygen sensor
Misfire detection
Turbocharger waste
gate actuator Engine
terminal Performs the closed loop control of the air/fuel ra
tio by using only the signal of the heated
oxygen sensor (front) installed on the front side o f the catalytic converter.
The ECM stops supplying fuel to the cylinder with t he highest misfiring rate if a misfiring that
could damage the catalytic converter is detected.
Shuts off fuel in case of overcharge.
Does not restrict the generator output with respect to electrical load.
No increase in fuel amount during acceleration due to the unreliable throttle position
sensor signal.
Controls as if the ‘engine coolant temperature is
fuel into the cylinders in the order with irregular timing.
(After the ignition switch is turned to ON, the No. 1 cylinder top dead center is not de-
tected at all.)
off the fuel supply 4 seconds after a problem is d etected.
(After the ignition switch is turned to ON, the No. 1 cylinder top dead center is not de-
tected at all.)
Controls as if the barometric pressure is 101
(30 (sea level).
Switches the ignition timing from ignition timing f or high octane to ignition timing for standard
octane fuel.
Cuts off the fuel supply to cylinders with an abnor mal ignition signal.
Air/fuel ratio closed loop control is not performed
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AUTOMATIC TRANSAXLE ENGINE (NON-TURBO)> Troubleshooting
ROAD TEST
Use scan
ConditionsOperationJudgment value Inspection item Diagnostic
trouble code
1Ignition switch: ON Check the limp-in Data list Transaxle control
Engine: Stoppedmodel No limp-in modemodule
Transaxle control 14
relay15
20
Check the battery Data list Battery12
positive voltage
2Warming up Drive for 15 Data list No. 56 O i l t e m p e r a t u r e 7 4
minutes or more so
that the automatic Gradually rises to
sensor
transmission fluid
temperature
becomes
3Engine:Engine Data list Transaxle control 45
Selector lever(1) (for at least(1) 2.0 module
position:30 seconds) Check diagnos- CCD Bus19
tic trouble code
Solenoid Circuit
Selector lever
position
(3) (4)
(5) 2 (6)
Data list T r a n s a x l e r a n g e 2 8
and neutral position
(3) (4) switches
(5) 2 (6)
3Engine: Idle Accelerator pedal Data list Crankshaft position 18
Selector lever(1) Depressed (for (1) Engine speeds
position:at least 3 displayed on the
scan tool and
tachometer are
identical
Accelerator pedal
Data list T h r o t t l e p o s i t i o n 2 9
(1) Fully closed
400 or moresensor
(2) Fully open (for at least 2 seconds)
(2) 3,800 or less
Revision