engine MITSUBISHI SPYDER 1990 Service Repair Manual

ENGINE (NON-TURBO)>
1MemoryDiagnostic itemsCheck items (Remedy)
Engine coolantHarness and
temperature sensorEngine coolant temper
voltage too low
ature sensor
Engine coolantlHarness
temperature sensorl Engirie coolant temper
voltage too high sensor
Upstream staysl Harness and
at centerl Upstream
Engine is cold too longl Engine coolant temper
ature sensor
connectorlEngine coolant
sensor
Thermostat
No vehicle speed
lHarness and
sensor signallVehicle speed sensor
MAP sensor voltagelHarness
too low (If harness connec-
tor are not defective, replace
sensor.)
MAP sensor voltagel Harness and connector
t o o h i g h
(If harness and connec-
tor are not defective,
replace MAP sensor.)
No
in MAPl Harness and connector
from start to run (If harness and connec-
tor are defective,
replace MAP sensor.)
No crankshaftl Harness and connector
reference signal at (If harness and
tor are’ not defective,
replace crankshaft posi-
tion sensqr.)
gnition coil
primaryl Harness and connector
Ignition coil
gnition coil primaryl Harness and connectorlIgnition coil
relay (ASDl connector
ay) output voltage atl relay (ASD relay)
‘CM
system failurel Harness and connector
lElectric EGR transducer
solenoid
l v a l v e
l EGR tube clogged
l Vacuum hoses
DTC NC
pulses
mode>
DTC No. DTC No. tool (MUT-II)scan toolmode>mode>
30
31
32 34
1
I
I
I
I
Retained22
22
,
I
I
I
Retained
Retained
21
17
15
14
14
33
35Retained
36Retained
Retained
13Retained
11
6
MIL: Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses observedatthe MIL.
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E N G I N E ( N O N - T U R B O ) >
DTC No. DTC No. DTC No. Diagnostic items tool (MUT-II)scan tool pulsesmode>mode>
48 62 P C M f a i l u r e
SRI mile not storedCheck items (Remedy)
l
Replace the PCM M e m o r yRetained
49 63PCM failurel
Replace the PCM Retained
EEPROM write denied
57 23Intake air temperaturel Harness and connector Retained
sensor voltage lowIntake air temperature
sensor
58
23Intake air temperaturel 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
sensor voltage highIntake air temperature
sensor
59
16Knock sensor
circuit
l Harness and connector Retained
(If harness and connec-
tor are not defective,
replace knock sensor.)
61 27
62 21
53
Injector control
circuit
Upstream
shorted to voltage
PCM failure
communications
lH 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 lInjector
Harness and connector Retained
l Upstream
lReplace the PCM R e t a i n e d
7144Battery temperature
volts out of limitl Replace the PCM R e t a i n e d
32 35
33 35
Low speed fan controll
Harness and connector Retained
relay circuitLow speed fan relay
High speed condenserl 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
fan control relay circuitl High speed condenser
fan relay
66No CCD messages
from TCM Harness and connector Retained
42
21
21
Fuel pump relay
control circuit
Upstream
response
Upstream
heater failure
Harness and connector Retained
lFuel pump relay
l Harness and connector Retained
l Upstream
l Harness and connector Retained lUpstream
Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at the
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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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E N G I N E
DTC No. tool(MUT-II)
155
44
21
21
11
6031
Diagnostic items Check items (Remedy) Memory
P a g e
High speed radiatorl Harness and connector Retained’
fan control relay circuitlHigh speed radiator fan
relay
5 volt supply outputHarness and connector
too low
Fuel level sending unitlHarness and connector Retained
volts too lowFuel level. sensor
Fuel level sending unit
lHarness and connector Retained
volts too highlFuel level sensor
Fuel level unit nol Harness and connector Retained
change over miles l e v e l s e n s o r
Battery temperaturel Replace the PCM. R e t a i n e d
sensor voltage too low
B a t t e r y t e m p e r a t u r e lReplace the PCM. R e t a i n e d , ,
sensor voltage too
high
UpstreamlHarness and connector Retained
voltage groundedl
Upstream
DownstreamlHarness and connector’ Retained
voltage groundedl Downstream
Intermittent loss of
CMP or CKPl Crankshaft position Retained
and camshaft posi-
tion sensor connector
EVAP leak monitor
small leak detectedlFuel tank ‘RetainedlPurge linelEvaporative emissionventilation solenoid
EVAP leak monitor
large leak detected
l Fuel tank R e t a i n e d
P u r g e l i n e
l Evaporative emission
ventilation solenoid
Evaporative emission
ventilation solenoid
circuit
Evaporative emission
ventilation solenoid
switch or mechanical
fault
l Harness and connector Retained
l E v a p o r a t i v e e m i s s i o n
ventilation solenoid
l Harness and connector Retained*“’
l Vacuum hose routing
l Evaporative emission
ventilation solenoid
EVAP leak monitor
pinched hose found P u r g e l i n e R e t a i n e d ’
l
Evaporative emission
ventilation solenoid
MIL: Check engine/Malfunction Indicator Lamp (MIL)
The number shown represents the number of pulses ob served at the MIL.
A d i a g n o s t i c t r o u b l e
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ENGINE (NON-TURBO)> Troubleshooting
INSPECTION PROCEDURE FOR DIAGNOSTIC TROUBLE CODES
Scan tool 01
Code General scan tool
No.No Cam Sync Signal at PCMProbable cause
54
[Comment]l Open supply circuitBackgroundl Open sensor groundlThe PCM uses information from both the camshaft pos ition sensor and crankshaft positionl Open or shorted signal circuit
sensor to determine ignition timing. l Damaged camshaft target magnet
lWhen the camshaft position sensor signal is lost, t he PCM relies on the positionl Sensor failed,
sensor signal to allow engine operation. l PCM failed
lThis could result in fuel injection being out of phase, which would result in deteriorationof engine performance and emissions.
Range of Check ,
l
Ignition switch: ON
l Crankshaft position sensor signal (High or low) is input (Engine: Cranking).
Set ConditionlCamshaft position sensor signal (High or low) isn’t input for 2 seconds.
Check that the camshaft position
NG
Measure at the camshaft sensor connector lDisconnect the connector, and measure at the harnes s side.
l Voltage between 1 and ground
(Ignition switch: ON)
O K :
Repair
N GNG C h e c k t h e Repairconnectors:
l Voltage between 3 and ground
(Ignition switch: ON)
O K :
l Continuity between 2 and ground
OK: Continuity
OK
Check trouble
NG
Check the harness wire between the PCM and camshaf t positionsensor connector.
OK
NG
Replace the PCM.Repair
Check the following connector:
Repair
Check trouble symptom.
N G
Replace the camshaft position sensor.I
,
Check trouble symptom.
the PCM. I’
Scan tool 02
Internal Controller FailureNo.
53
P r o b a b l e c a u s e
[Comment]Set Condition l
PCM failed
l An internal fault has been detected in the PCM
Replace the PCM.
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ENGINE (NON-TURBO)>
C h a r g i n g T o o
47
[Comment]
Background
The PCM tries to maintain charging system voltage of between and 15 volts.
l This code indicates:
The battery voltage input is below the target charg ing voltage during engine
andNo significant change in voltage has been detected during active testing of the generator
output circuit.
Range of Check
lEngine speed: or more for approx. one minutelBattery positive voltage is at least 1 lower than the target charging voltage for approx.60 seconds.Set ConditionlBattery positive voltage does not change even if th e generator field current is cut off.
lDefects in generator or adjustmentl High resistance generatorl High between battery and
generator ground
l PCM
Check that the generator drive belt is properly in stalled. Repair
NG Measure the voltage between the generator terminal and the battery positive terminal. Engine: 1600 Headlight: High beam ON)
OK: Less than
Check the harness wire and terminal generator terminal and battery necessary.
NGMeasure the voltage between the generator body and battery Check the generator grounded line: neoative terminal. Engine: 1600 Headlight: High beam ON)
OK: Less than 0.5
OK
Measure at the generator lDisconnect the connector, and measure at the harnes s side.
SCAN TOOL Actuator test 10
relay (ASD relay) isturnedonandoff everyapprox. l Voltage between 1 and ground
[Measure when the relay (ASD relay) is turned on.]
OK: Battery positive voltage
NG Check the wire between generator relay
(ASD relay) connector. Repair, if necessary.
OK
Check the harness wire NG Repair connector.I
OK NG
SCAN TOOL SENSOR READ TEST (Data list) Check the harness wire between the PCM and the bat tery 10 Battery voltage as the ignition switch. Repair, if necessary.OK: indicated on the scan tool and actual positive
Check trouble symptom.
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ENGINE (NON-TURBO)> Troubleshooting
Scan tool 06
General scan tool Charging System Voltage Too
.High
46
[Comment]
Background Generator internal shorted
l The PCM tries to maintain charging system voltage o f between 13.2 and 15 volts.l
Generator field driver shorted to ‘ground l PCM failedlThis code indicates that the battery voltage input is above the target charging voltage
during engine operation and PCM efforts to regulate the generator field do not prevent
the voltage from rising.
Range of Check
lEngine speed: 1500 or more for approx. one minute
Set Condition ,
lBattery positive voltage is at least higher than target charging voltage for approx. 12seconds.
SCAN TOOL SENSOR READ TEST (Data list)
36 Charging system goal
OK:
or more
Replace the PCM.
SCAN TOOL SENSOR
(Data list)as well as me ignitionswitch. necessary.OK: on the scan tool and actual battery positivelCheck the wire between the PCM and ground.
voltage are the same. Repair, if necessary.
OK
, NG
tor. and if necessary.
Measure at the generator connector Repair megeneralDisconnect the connector and measure at the equipme nt side.l Continuity between 2 and generator body.
OK: No continuity
I
OK
Check me following NG Repair
OK
Check trouble symptom.
Check the harness wire
NG
OK
Repair
Replace the PCM.
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Scan tool 16
General scan tool A/C Clutch Relay Circuit ,.
33
[Comment]Coinpressor clutch relay shortedBackgroundl control circuit defectivel The PCM provides a switched ground to the clutch relay.
l circuit driver in PCMlThe PCM can prevent operation of the clutch in selected situations such as duringwide-open or for a period at start-up.l This DTC indicates an open or short-circuit conditi on in the circuit.Range of Checkl Ignition ONl Battery voltage: or morel 30 seconds or more after starting engineSet ConditionlOpen or short circuit is detected in the A/C clutch relay control circuit for 3 seconds.
N G relay. Replace
. .
. 55 On-vehicle Service) me (Refer to GROUF
OK
Measure at the PCM connectors and lDisconnect the connector, and measure at the harnes s side.
l Voltage between 36 and ground, and 64 and ground
(Ignition switch: ON)
switch: ON)
OK: Battery positive
l Connect a jumper wire between and the ground.
(Ignition switch: ON)
(A/C switch: ON)
OK:
compressor clutch is turned on
N G
Check the system (Refer to GROUP 55 Troubleshooting) Check trouble symptom.
NG
Replace the . ,
I ,
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ENGINE
Scan tool 19
Injector Control Circuit.Probable cause,
MIL 27
[Comment]
Backgroundl Open or shorted injector control
l Grounds for the injector circuits are provided by t he PCM.l i n j e c t o r
l Battery power is provided through the
relay (ASD relay) l
Open (ASD) supply l Driver in PCM failed lThis DTC is set if an open or short-circuit conditi on is detected in the control circuit for
the individual injector.
,Range of Checkl Battery voltage: or morel relay (ASD relay): ONl Engine: 3000 or lessSet Condition force is not detected for 3 seconds immediately af ter injectors
OK
NG
Measure at the injector connector Check the following connectors: lDisconnect the connector, and measure at the harnes s side.
SCAN TOOL Actuator test
10 relay (ASD relay) relay (ASD relay) is turned on and off every appro x. l Voltaae between 2 and around with the (ASD relay) on]
OK: Battery positive voltage Check the harness wire between the relay, (ASD and
the injector connector. Repair, if necessary.
Measure at the PCM connector
lDisconnect the connector and measure at the harness side.lDisconnect PCM connector and short terminal (67) of
the harness-side connector to ground.
l Voltage between 7 and ground
OK: Battery positive voltage Check the
between PCM and injector connector. Repair, if
OK
Check Repair
OK
Check trouble symptom.
NG
Replace the PCM.
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