check oil MITSUBISHI SPYDER 1990 Service Repair Manual

ENGINE (TURBO)
AND ENGINE> Troubleshooting
Code No. Evaporative Emission Control System Vent Probable cause
Control Malfunction
Engine>
[Comment]l Evaporative emission vent Backgroundl Open or shortedevaporativelThe engine control module checks current flows in t he evaporative emission ventilation
solenoid circuit, or loose connector.
solenoid drive circuit when the solenoid is ON and OFF
l Engine control module failed.
Check Area voltage is not lower than V.
Judgement CriterialSolenoid coil surge voltage (system voltage is not detected when the Evaporative
emission vent solenoid is turned on/off.
Check the evaporative emission ventilation solenoid (Refer to
GROUP 17
Emission Control System)
Check the harness wire between relay and
Measure at the ECM connector lDisconnect the connector and measure at the harness side.
l Voltage between 55 and ground
(Ignition switch: ON)
OK: Batten/ positive
OK
c o n n e c t o r . R e p a i r , i f n e c e s s a r y .
NG Check NG
O K
Check trouble symptom.
NG
Check the harness wire between ECM and connec-tor. Repair, if necessary.
Check trouble symptom. Replace the ECM.
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ENGINE (TURBO)
AND
Code No. Turbocharger Waste Gate Solenoid
Malfunction
Engine (Turbo)>
Probable cause
[Comment]l Turbocharger waste gate solenoid BackgroundlThe engine control module checks current flows in t he turbocharger waste gate solenoidl loose connector.
drive circuit when the solenoid is ON and OFF. l Engine control module failed.
Check Areal Battery voltage is not lower than 10 V.
Judgement CriterialSolenoid coil surge voltage (system voltage V) is not detected when the turbochargerwaste gate solenoid is turned on/off.
Check the turbocharger
NG
(Refer to GROUP 15 On-vehicleService.) Replace
OK
Measure at the turbocharger waste gate pressure sol enoidconnectorlDisconnect the connector and measure at the harnessRepair, if necessary.
.
side.l Voltage between 2 and ground (Ignition switch: ON)
OK: Battery positive voltage
Measureat the ECM connector lDisconnect the connectorand measure at the harness
- 1 N G
Check the following con- Repair A-l 00
lVoltage between 11 and ground (Ignition switch: ON)
OK: Battery positive voltageOK
Check trouble symptom.
NG
,
RepairCheck the harness wire between ECM and Repair, if
Check trouble symptom.
N G
[Replace the ECM. ,
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ENGINE (TURBO)
AND ,
Code No. Fuel Pressure Solenoid Malfunction
Engine
BackgroundlThe engine control module checks current flows in the fuel pressure solenoid drive circuitwhen the solenoid is on and off.
Check Area l Battery voltage is not lower than 10 V.
Judgement
lSolenoid coil surge voltage (system voltage 2 V) is not detected when the fuel pressuresolenoid is turned on/off.
Probablecause
l Fuel pressure solenoid lOpen or shorted fuel pressure or loose connector
l E n g i n e
. .
Check the fuel press Replace
OK
Measure at the fuel pressure solenoid connector lDisconnect the connector and measure at the harness
side.
l Voltaae between 1 and (Ignition switch: ON)
. . . . if I
OK: positive voltage.
OK
Check trouble
NG
Check the wire between and Repair, necessary.
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(TURBO)
AND ENGINE> Troubleshooting
Code No. Generator Terminal Circuit Malfunction
[Comment]
Background
lWhen the generator field coil is controlled, the generator terminal inputs a signal to
the engine control module.
lThe engine control module detects the generator out put with the input signal, and controlsthe idle air control motor according to the generator output.
Check Area
l Engine speed is higher than 50
Judgement CriterialInput voltage from the generator terminal has continued to be not lower than 4.5 for 20 sec.
Measure at the generator connector
l Connect the connector.
l Voltage between 4 and ground
Engine: Idle
Radiator fan: stopped
Headlight: off
on
Stop Lamp: off on
Rear defogger switch: off on
OK: voltage drops
NG
Measure at the generator connector lDisconnect the connector, and measure at the harnes s side.
l Voltage between 4 and ground (Ignition switch: ON)
O K :
Probable cause
lOpen circuit in generator terminal circuitl Enginecontrol module failed
,
Replace the ECM.
,
. ,
Check trouble symptom.
NG
NG
Repairbetween theECMand the
OK
connector:
NG Repair
OK
Check trouble symptom. generator
NG
Check the NG Repair Replace the ECM.I
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Replace the generator.1
Code No. Serial Communication Link Malfunction
Probable cause
(with
[Comment]l Automatic transaxle control system Backgroundl Open or short circuit in communication linelThe engine control module receives message signals from the transaxle control modulebetween engine module and transaxlevia the communication line. control module, or poor connector contactlThe engine control module monitors abnormalities in message signals resulting froml
Transaxle control module failed.
a broken communication line or transaxle control mo dule problems.l Engine control module failed.
Check Areal 2 seconds or more have passed since starting was co mpleted.
Judgement CriterialAbnormality in communication line (TCM to ECM) with transaxle control module l Problem with transaxle control module (TCM).

ENGINE (TURBO)
INSPECTION PROCEDURE 4
The check engine/malfunction indicator lamp remains
and never goes out.
[Comment]
In cases such as the above, the cause is probably t hat the ECM is detecting a problem in a
sensor or actuator, or that one of the malfunctions listed at right has occurred.
,
P r o b a b l e c a u s e
l c h e c k indicator lamp and ECM
l Malfunction of the ECM
SCAN TOOL
DTCRefer to I N S P E C T I O N C H A R T F O R TROUBLE CODES.
lDisconnect the connector, and measure at the harnes sside.l Disconnect the ECM connector.
l Continuity between 51 and ground
OK: No continuity
OK Check the harness wire between-combination meter an
d
tor. Repair, if necessary.
Replace the ECM.
INSPECTION PROCEDURE 5
Cranks, won’t start Probable cause
[Comment]l Malfunction of the ignition systemIn cases such as the above, the cause is probably t hat the spark plugs are fouled defective, orl Malfunction of the fuel pump systemthat the supply of fuel to the combustion chamber i s defective. Malfunction of the injector systemIn addition, foreign materials (water, kerosene, etc.) may be mixed with the fuel.l Malfunction of the ECM
l Foreign materials in fuel
Scan tool: Inspection when no initial combustion oc curs.
(Refer to
INSPECTION PROCEDURE 36.)
OK
Can any sound be heard from (Refer to
Yes
Ignition system: Inspection when no initial combust ion oc-curs. (Refer to INSPECTION PROCEDURE37.)
OK
PROCEDURE FOR DIAGNOSTIC TROUBLE CODES
Check battery positive voltage when cranking.
OK: 8 or hiaher Check the battery. (Refer to GROUP 54 -Battery.)
Check the following items. l Check the ignition coil, spark plugs, spark plug ca bles.
l Check if the injectors are clogged.
l Check if foreign materials (water, alcohol, etc.) g ot into fuel.
l Check the compression pressure.
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ENGINE (TURBO)
ENGINE>
INSPECTION PROCEDURE 6
Fires up and dies.Probable cause .
[Comment] Malfunction of system
In such cases as the above, the cause is probably that the spark plugs are generating sparksl Malfunction of the injector systembut the sparks are weak, or the initial mixture for starting is not appropriate. Foreign materials in fuel P o o r Malfunction of the ECM .
Check battery positive voltage wh
OK: 8 or higher
OK
Check the battery. (Refer to GROUP
Scan tool: Inspection when incomplete combustion oc curs.(Refer to INSPECTION PROCEDURE 38.)
OK
Yes
INSPECTION
PROCEDURE FOR DIAGNOSTIC TROUBLE
,
Is starting good if the engine Yes.
pedal depressed?
No
Check idle air control motor for operation sound. Check the idle control malfunction (Refer toEngine (Refer to
(Check idle air control motorfor operation sound (Refer to
INSPECTION
TROUBLE
Clean the valve
(Refer to
l Check and adjust the
Check the ignition timing when cranking.
OK:
OK
Check the following items. l Check the ignition coil, spark plugs, spark plug ca bles.
Check if the injectors are clogged. Check the compression pressure.
l Check fuel lines for clogging.
l Check if foreign materials (water, alcohol, etc.) g ot into fuel.
,
Check that the crankshaft position sensor and
belt cover are
installed property.
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ENGINE (TURBO)
AND ENGINE> Troubleshooting
INSPECTION PROCEDURE 7
In cases such as the above, the cause is probably that the spark is weak and ignition is difficult,
the initial mixture for starting is not appropriate , or sufficient compression pressure is not being
Probablecause .
Malfunction of the ignition system
l Malfunction of the system Inappropriate gasoline use P o o r
Check battery positive
OK: 8 or higher Check the battery. (Refer to GROUP 54 -Battery)
Scan tool: Inspection when incomplete combustion oc
curs.(Refer to INSPECTION PROCEDURE 38.)
OK
Can any sound be heard
(Refer to
Yes
No
PROCEDURE FOR DIAGNOSTIC TROUBLE CODES .
Check the ignition timing when cranking.
OK:
OK Check that the crankshaft position sensor and
belt cover are
installed
Check the following items.
l Check the ignition coil, spark plugs, spark plug ca bles.
l Check if the injectors are clogged.
l Check the
l Check if foreign (water, alcohol, etc.) got into fuel.I
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E N G I N E ( T U R B O )
AND ENGINE>
INSPECTION PROCEDURE 8
Unstable Rough
[Comment]
In cases such as the above, the cause is probably t hat the ignition system, air/fuel mixture, idle
air control motor or compression pressure is defect ive.
Because the range of possible causes is broad, insp ection is narrowed down to simple items.
W ere the battery terminals disconnected recently
NOAfter warming-up, let the
for minutes.’ ,
SCAN TOOL DTC YES
Are diagnostic trouble codes output Refer to INSPECTION FORDIAGNOSTICT R O U B L E C O D E S .
Does idle speed fluctuate excessively
NO(Refer to INSPECTION 39.)
Check the idle air control motor for operation soun d
control motor for operation sound engine>. (ReferNG .
Probable cause ,
Malfunction of the ignition of system
l M a l f u n c t i o n s y s t e ml Malfunction of the evaporative purge system-
l Poor compression
l Drawing air
exhaust system
Check the idle control system malfunction (Refer to INSPECTION PROCEDURE FOR DIAGNOSTIC TROUBLECODE
ChecktheinjectorforoperationI .
PROCEDURE FOR DIAGNOSTIC TROUBLE-CODES
Scan tool: Inspection when idle speed is unstable.
(Refer to INSPECTION PROCEDURE 40.)
Check the ignition timing. Engine (Turbo)>
(Refer to GROUP On-vehicle Service.)
Check the ignition timing. Engine>
(Refer to GROUP On-vehicle
Check that the crankshaft position sensor and timi ng belt cover are
installed properly.
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OK
SCAN TOOL Actuator test 10 EGR solenoid (Refer to NG.
OK
Check the exhaust gas recirculation solenoid malfun ction.(Refer to INSPECTION PROCEDURE FOR DIAGNOSTICTROUBLE CODE
Check the following items.
l Check the ignition coil, spark plugs, spark plug ca bles.
l Check the purge control System.
l Check the compression pressure.
l Check if foreign materials (water, alcohol, etc.) g ot into fuel.
l Check the EGR system.

ENGINE (TURBO)
AND ENGINE> Troubleshooting
INSPECTION PROCEDURE 11
When the engine is cold, it stalls at idle. (Die out)P r o b a b l e c a u s e .
[Comment]l Malfunction of the system
In such cases as the above, the cause is probably t hat the mixture is inappropriate whenl the bodythe engine is cold, or that the intake air volume is insufficient.l Malfunction of the injector system Malfunction of the s y s t e m
W ere the battery terminals disconnected recently
NO
After warming-up, let the engine run at idling for 10 minutes.
SCAN TOOL DTC
Are diagnostic trouble codesoutput?Refer to INSPECTION CHART FOR TROUBLE CODES.
(Refer to Check and adjust the (Refer to ,
NO
Is engine-idling stable after the warming-up
YES(Refer to INSPECTION PROCEDURE
Check the idle air control motor for operation soun d NG
Engine (Turbo)>. (Refer to Check the idle air control motor for operation sound (Refer to
Checktheinjectorforope
OK
Check the idle control system malfunction to .INSPECTION PROCEDURE FOR DIAGNOSTIC TROUBLE CODE
PROCEDURE FOR DIAGNOSTIC TROUBLE CODES
SCAN TOOL Data list Check the closed position switch system.
26 Closed throttle position switch (Refer to INSPECTION PROCEDURE FOR
OKTROUBLE CODES
SCAN TOOL Data listN G Check the engine coolant temperature circuit malfu nction. (Refer to21 Enginecoolanttemperaturesensor P. I N S P E C T I O N P R O C E D U R E F O R TROUBLE CODES
Check the fuel pressure. (Refer to I
Check the ignition timing. Engine Check that the position sensor and belt cover are
(Refer to GROUP
(Refer to GROUP Check the ignition timing. Engine>
Check the following items.
l Check the ignition coil, spark plugs, spark plug ca bles.
l Check the compression pressure.
l Check the engine oil viscosity.
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ENGINE (TURBO)
AND ENGINE> Troubleshooting
INSPECTION PROCEDURE 12.
When the engine is hot, it stalls at idle. (Die out)Probable cause
l Malfunction of the ignition system In cases such as the above, the cause is probably t hat ignition system, air/fuel mixture, idle airl Malfunction control systemcontrol motor or compression pressure is defective.l M a l f u n c t i o n o f system In addition, if the engine suddenly stalls, the cau se may also be a defective connector contact.l Drawing air into intake system
l I m p r o p e r c o n n e c t o r c o n t a c t
W ere the battery terminals disconnected recently After warming-up, let the engine run at idling for minutes.
NO
SCAN TOOL DTC
Are diagnostic trouble codes output?YESRefer to I N S P E C T I O N C H A R T TROUBLE CODES.
Check the idle air controlEngine (Refer Check the idle control system malfunction (Refer to
INSPECTION PROCEDURE FOR DIAGNOSTIC TROUBLE CODE
Check the idle air control motor for operation soun d
(Refer to
Checktheinjectorforoperati
OKPROCEDURE FOR DIAGNOSTIC ,
I
Does the engine stall N O While carrying out an intermittent malfunction sim
ulation test (Refer
YESto GROUP 00 How to Cope with Intermittent Malfunctions, check
for sudden changes in the signals shown below.
Scan tool: Inspection when engine stalls when the e nginel Crankshaft position sensor Primary is warm and idling INSPECTION signal signal
CEDURE 41.) Volumeairflowsensorsignal l
Fuel pump drive signal
OK l
Injector drive signal l ECM power supply voltage
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Check the ignition timing. Engine (Turbo)>
(Refer to GROUP On-vehicle Service.)
Check the ignition timing. Engine>
(Refer to GROUP On-vehicle Service.)
Check that the crankshaft position sensor and timin g belt cover are
installed properly.
Check the following items.
l Check the ignition coil, spark plugs, spark plug ca bles.
l Check if the injectors are clogged.
l Check the compression pressure.
l Check if foreign materials (water, alcohol, etc.) g ot into fuel.