1990 MITSUBISHI SPYDER Service Repair Manual

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Page 449 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual (NON-TURBO)>
Scan tool 126
Code General scan tool Downstream Shorted to
No. 38Voltage
21
[Comment]l Heated oxygen sensor failedBackgroundlDownstream heated oxygen sensor requires

Page 450 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE (NON-TURBO)>
Scan tool 129.
C o d e G e n e r a l s c a n t o o l D o w n s t r e a m Stays at
No. 40. 21
[Comment]Backgroundl Heated oxygen sensor (rear) ,
l Sensor

ENGINE (NON-TURBO)>
Scan tool 129.
C o d e G e n e r a l s c a n t o o l D o w n s t r e a m Stays at
No. 40. 21
[Comment]Backgroundl Heated oxygen sensor (rear) ,
l Sensor output voltage is checked. l
Sensor signal circuit open
PCM failedlIf voltage stays at center instead of switching, an open circuit is likely.Range of Check
. .l 2 minutes after starting enginel Engine coolant temperature: More than Set Condition.lNeither rich nor lean condition is detected from th e downstream heated oxygen sensor .
input. (Voltage is 0.5 volts for 1.5 minutes)
Check the heated oxygen sensor (rear)
OK
NG
N G
Replace
Repair
OK
Check trouble svmptom.
NG
Check the harness wire between thesensor (rear) connector.
OK
NG Repair
Replace the PCM.
Scan tool 132
Code
No.
scan tool Throttle Position Does Not Agree
Map
24
[Comment] Background
lThis DTC indicates a failure in the rationality che ck comparing MAP values to throffleposition.Range of Check
l Engine speed: less than 1,500
l Subtract MAP value from atmospheric pressure:
more than 13 (19 psi) [when atmospheric pressure is more than 7 7 (11 psi)]
more than 6 (0.9 psi) [when atmospheric pressure is less than 77 (11 psi)]
Set Condition
l Throttle position sensor output voltage is 3.75-4.7 1 V.
Range of Check
l Engine speed: more than 1,500
l Vehicle speed: more than 25 mph
l Subtract MAP value from atmospheric pressure: less than 13 (19 psi)
Set Condition
l Throttle position sensor output voltage is
V.
SCAN TOOL SENSOR READ TESTS (Data list)
07 Throffle position (Refer to
OK
. _ -
SCAN TOOL SENSOR READ TESTS (Data list)
69 MAP gauge reading (Refer to
t -
OK
Replace the PCM.
. sensor failed position sensor related lMAPlM A P related circuit
.
Check the throffle position sensor system. (Refer. I N S P E C T I O N P R O C E D U R E FO RC O D E (Refer to I N S P E C T I O NPROCEDUREF O R D I A G N O S T I C T R O U B L E C O D E
Check the MAP sensor system. (Refer to INSPECTIONP R O C E D U R E F O R D I A G N O S T I C T R O U B L E (Refer to INSPECTION FOR DIAGNOSTIC TROUBLE CODE
TSB Revision,

Page 451 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ( N O N - T U R B O ) >
Scan tool 133
Code General scan tool Timing Belt Skipped 1 Tooth or
No.More
11 ,,
[Comment]l Timing belt improperly BackgroundlThe PCM uses voltage signal

Page 452 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE (NON-TURBO)>
Scan tool 135
No. No 5 Volts to MAP
14
[Comment]Background Open circuit
The
of 5 volts is to the MAP sensor. if this is extremely l Signal circuit

Page 453 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual E N G I N E
Scan tool 136
Code General scan tool No 5 Volts to Throttle
No.Sensor
24
[Comment]
Backgroundl S e n s o r circuit grounded
lThe of 5 volts is to the TPS. if

Page 454 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE Troubleshooting .
Scan tool 138
Code General scan tool
No. Not
25
[Comment]Range of Check
l Engine:
l Vehicle at rest and the brake appliedSet Conditionl speed differ

Page 455 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual ENGINE (NON-TURBO)>
Scan tool 146
Code General scan too!
No.5 Volts Supply output Low‘
14
[Comment)
l The PCM supplies aregulated B-volts to the and MAP sensor.lThis DTC

Page 456 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual E N G I N E
Scan tool 149
Code General scan tool Fuel Level Sending Unit Volts Too
No.Low
42
[Comment]l Sensor signal line is grounded. . Backgroundl Fuel level sensor failedl

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