Daewoo Nubira. Manual — part 127
ENGINE CONTROLS 1F – 3
DAEWOO V–121 BL4
DTC P1134 O2 BANK 1 SENSOR 1 TRANSITION
RATIO
1F–308
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1171 FUEL SUPPLY SYSTEM LEAN DURING
POWER ENRICH
1F–311
. . . . . . . . . . . . . . . . . . . . . .
DTC P1336 58X CRANK POSITION TOOTH ERROR
NOT LEARNED
1F–313
. . . . . . . . . . . . . . . . . . . . . . .
DTC P1380 ABS ROUGH ROAD ROUGH ROAD
DATA INVALID
1F–315
. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1381 ABS ROUGH ROAD SERIAL DATA
FAULT
1F–317
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1391 G SENSOR ROUGH ROAD
RATIONALITY
1F–319
. . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1392 G SENSOR ROUGH ROAD LOW
VOLTAGE
1F–322
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1393 G SENSOR ROUGH ROAD HIGH
VOLTAGE
1F–325
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1404 EXHAUST GAS RECIRCULATION
CLOSED VALVE PINTLE ERROR
1F–328
. . . . . . .
DTC P1441 EVAPORATIVE EMISSION
CONTINUOUS PURGE FLOW
1F–331
. . . . . . . . . .
DTC P1508 IDLE AIR CONTROL COUNTS TOO
LOW
1F–334
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1509 IDLE AIR CONTROL COUNTS TOO
HIGH
1F–337
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1546 A/C CLUTCH OUTPUT CIRCUIT FAULT
1F–340
DTC P1618 PCM/ECM INTERNAL SPI
COMMUNICATION
1F–343
. . . . . . . . . . . . . . . . . . . .
DTC P1625 PCM/ECM INTERNAL SYSTEM RESET
1F–344
DTC P1626 PCM/ECM COMMON ANTI–THEFT
ERROR NO PASSWORD
1F–345
. . . . . . . . . . . . . . .
DTC P1627 PCM/ECM A/D CONVERSION ERROR 1
F–348
DTC P1631 PCM/ECM COMMON ANTI–THEFT
ERROR INCORRECT PASSWORD
1F–349
. . . . . .
DTC P1635 PCM/ECM 5 VOLT REFERENCE LINE
LOW
1F–351
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1640 ODM INTERNAL SPI COMMUNICATION
1F–354
SYMPTOM DIAGNOSIS
1F–357
. . . . . . . . . . . . . . . . . . .
IMPORTANT PRELIMINARY CHECKS
1F–357
. . . . .
INTERMITTENTS
1F–357
. . . . . . . . . . . . . . . . . . . . . . .
HARD START
1F–359
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SURGES OR CHUGGLES
1F–361
. . . . . . . . . . . . . . . .
LACK OF POWER, SLUGGISHNESS, OR
SPONGINESS
1F–364
. . . . . . . . . . . . . . . . . . . . . . . .
DETONATION/SPARK KNOCK
1F–365
. . . . . . . . . . . .
HESITATION, SAG, STUMBLE
1F–367
. . . . . . . . . . . .
CUTS OUT, MISSES
1F–368
. . . . . . . . . . . . . . . . . . . . .
POOR FUEL ECONOMY
1F–370
. . . . . . . . . . . . . . . . .
ROUGH, UNSTABLE, OR INCORRECT IDLE,
STALLING
1F–371
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXCESSIVE EXHAUST EMISSIONS OR ODORS 1F
–374
DIESELING, RUN–ON
1F–375
. . . . . . . . . . . . . . . . . . .
BACKFIRE
1F–376
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR
1F–377
. . . . . . . . . . . . .
ON–VEHICLE SERVICE
1F–377
. . . . . . . . . . . . . . . . . . .
FUEL TANK
1F–377
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP
1F–379
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL TANK PRESSURE SENSOR
1F–380
. . . . . . . .
FUEL FILTER
1F–381
. . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL RAIL AND INJECTORS
1F–382
. . . . . . . . . . . . .
FUEL PRESSURE REGULATOR
1F–384
. . . . . . . . . .
ENGINE COOLANT TEMPERATURE SENSOR 1F–3
85
THROTTLE POSITION SENSOR
1F–386
. . . . . . . . . .
THROTTLE BODY
1F–386
. . . . . . . . . . . . . . . . . . . . . . .
OXYGEN SENSOR
1F–389
. . . . . . . . . . . . . . . . . . . . . .
HEATED OXYGEN SENSOR
1F–389
. . . . . . . . . . . . .
INTAKE AIR TEMPERATURE SENSOR
1F–391
. . . .
IDLE AIR CONTROL VALVE
1F–391
. . . . . . . . . . . . . .
MANIFOLD ABSOLUTE PRESSURE SENSOR 1F–39
2
EXHAUST GAS RECIRCULATION VALVE
1F–394
. .
G SENSOR
1F–394
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION CANISTER
1F–395
. . . .
EVAPORATIVE EMISSION CANISTER PURGE
SOLENOID
1F–396
. . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT POSITION SENSOR
1F–396
. . . . . . .
CAMSHAFT POSITION SENSOR
1F–398
. . . . . . . . .
POWERTRAIN CONTROL MODULE/ENGINE
CONTROL MODULE
1F–399
. . . . . . . . . . . . . . . . . . .
ELECTRONIC IGNITION SYSTEM IGNITION COIL 1
F–400
FUEL CUTOFF SWITCH
1F–401
. . . . . . . . . . . . . . . . .
KNOCK SENSOR
1F–402
. . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION
1F–404
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SYSTEM OPERATION
1F–404
. . . . . . . . .
ELECTRONIC IGNITION SYSTEM IGNITION COIL 1
F–404
CRANKSHAFT POSITION SENSOR
1F–404
. . . . . . .
CAMSHAFT POSITION SENSOR
1F–404
. . . . . . . . .
IDLE AIR SYSTEM OPERATION
1F–404
. . . . . . . . . .
FUEL CONTROL SYSTEM OPERATION
1F–404
. . .
EVAPORATIVE EMISSION CONTROL SYSTEM
OPERATION
1F–405
. . . . . . . . . . . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION CANISTER
1F–406
. . . .
1F – 4
I
ENGINE CONTROLS
DAEWOO V–121 BL4
POSITIVE CRANKCASE VENTILATION SYSTEM
OPERATION
1F–406
. . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE COOLANT TEMPERATURE SENSOR 1F–4
06
THROTTLE POSITION SENSOR
1F–406
. . . . . . . . . .
CATALYST MONITOR OXYGEN SENSOR
1F–406
.
EXHAUST GAS RECIRCULATION VALVE
1F–407
. .
INTAKE AIR TEMPERATURE SENSOR
1F–407
. . . .
IDLE AIR CONTROL VALVE
1F–407
. . . . . . . . . . . . . .
MANIFOLD ABSOLUTE PRESSURE SENSOR 1F–40
8
POWERTRAIN CONTROL MODULE/ENGINE
CONTROL MODULE
1F–408
. . . . . . . . . . . . . . . . . . .
FUEL INJECTOR
1F–408
. . . . . . . . . . . . . . . . . . . . . . . .
KNOCK SENSOR
1F–408
. . . . . . . . . . . . . . . . . . . . . . .
G SENSOR
1F–409
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL CUTOFF SWITCH
1F–409
. . . . . . . . . . . . . . . . .
STRATEGY–BASED DIAGNOSTICS
1F–409
. . . . . .
OBD II SERVICEABILITY ISSUES
1F–409
. . . . . . . . .
SERIAL DATA COMMUNICATIONS
1F–410
. . . . . . . .
ON–BOARD DIAGNOSTIC (OBD II)
1F–411
. . . . . . .
COMPREHENSIVE COMPONENT MONITOR
DIAGNOSTIC OPERATION
1F–411
. . . . . . . . . . . . .
COMMON OBD II TERMS
1F–412
. . . . . . . . . . . . . . . .
DTC TYPES
1F–413
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
READING DIAGNOSTIC TROUBLE CODES 1F–413
PRIMARY SYSTEM–BASED DIAGNOSTICS 1F–415
SPECIFICATIONS
ENGINE DATA DISPLAY TABLES
Engine Data Display
At idle / Upper Radiator / Closed Throttle / Park or Neutral / Closed loop / Acc. OFF
Scan Tool Parameter
Units Displayed
Typical Data Value
Engine Speed
RPM
µ
100 rpm from the Desired rpm
Desired Idle Speed
RPM
PCM/ECM Idle Command (Varies
with the calibration)
Engine Coolant Temperature
C – F
85
³
–115
³
C(185
³
–239
³
F) (Varies
with the coolant temperature)
Intake Air Temperature
C – F
10
³
–80
³
C(50
³
–176
³
F) (Varies with
the coolant temperature)
Throttle Position Angle
%
0% (up to 100% at wide open
throttle)
Throttle Position Sensor
Volts
0.200–0.900 v (up to 5.0 at wide
open throttle)
MAP
kPa
25–35 kPa
BARO
kPa
65–100 kPa (varies with altitude and
with the BARO pressure)
EGR Actual Position
%
0
EGR Desired Position
%
0%
EGR Feedback
Volt
–
IAC Position
Counts
5–60
Cam Speed Activity
Counts
0–255
Ignition Voltage
Volts
12.0–15.0
Engine Run Time
Seconds
Varies (since start up)
BPW Bank 1
mS
0–999.9
Air Fuel Ratio
Ratio
14.6:1 (Varies)
Spark
Degrees
Varies
Knock Retard
Degrees
Varies
ENGINE CONTROLS 1F – 5
DAEWOO V–121 BL4
Scan Tool Parameter
Typical Data Value
Units Displayed
Knock Active Counter
Counts
0–255
Knock Present
Yes/No
No
Calculated Load
%
0–100
Vehicle Speed
mph
0
Air Condition Pressure
Volt
0–5
Oxygen Bank 1 Sensor 1
mV
0–1000 and varying
Oxygen Bank 1 Sensor 2
mV
0–1000 and varying
Decel Fuel Mode
Yes/No
–
Power Enrichment Mode
Yes/No
–
Closed Loop
Yes/No
Yes
Loop Status
Close/Open
Close
Hot Loop Open
Yes/No
–
Rich/Lean Bank 1
Rich/Lean
–
Short Term Fuel Trim
%
–100 to 100 (Varies)
Long Term Fuel Trim
%
–100 to 100 (Varies)
EVAP Purge Solenoid
%
0–100
EVAP Vent Solenoid
On/Off
–
IAC Base Position
Counts
–
Fuel Trim Cell
Cell Number
18–12 at idle (Varies with the air
flow, RPM, P/N, and A/C)
Calculated Air Flow
g/sec
Varies
Weak Cylinder
–
Rough Road Sensor
Volt
5 Volt Reference
Volt
Throttle at Idle
Yes/No
–
Power Steering Cramp
Yes/No
–
Air Conditioning Request
On/Off
OFF
Air Conditioning Clutch
On/Off
OFF (On with the A/C request)
Fuel Pump
On/Off
ON
Malfunction Indicator Lamp
On/Off
–
Upshift Lamp
On/Off
–
Low Fuel Lamp
On/Off
–
Hot Open Loop Lamp
On/Off
–
Variable Gate Intake
Long/Short
Long
Fuel Trim Learned
On/Off
–
Fan 1
On/Off
OFF (Varies with fan request)
Fan 2
On/Off
OFF (Varies with fan request)
Park/Neutral
Yes/No
Yes
1F – 6
I
ENGINE CONTROLS
DAEWOO V–121 BL4
EVAP Data Display
At idle / Upper Radiator / Closed Throttle / Park or Neutral / Closed loop / Acc. OFF
Scan Tool Parameter
Units Displayed
Typical Data
Engine Speed
RPM
µ
100 rpm from the Desired rpm
Ignition Voltage
Volts
12.0–15.0
Engine Coolant Temperature
C – F
85
³
–115
³
C (185
³
–239
³
F) (Varies
with the coolant temperature)
Start Up Coolant Temperature
C – F
4
³
–34
³
C (39
³
–93
³
F) Varies with
underhood temperature when start-
ing
Intake Air Temperature
C – F
10
³
–80
³
C Varies with underhood
temperature
Start Up Intake Air Temperature
C – F
12
³
– 42
³
C (54
³
– 108
³
F) Varies
with underhood temperature when
starting
Engine Run Time
Seconds
Varies (Since start up)
Fuel Level Sensor
Volt
0.4–4.5
Fuel Gauge
On/Off
On
EVAP Purge Solenoid
%
0–100
EVAP Vent Solenoid
On/Off
Off
EVAP Tank Vacuum
Inches of H2O
Depends on Pressure / Vacuum
Throttle Position Angle
%
0% (up to 100% at wide open
throttle)
Throttle Position Sensor
Volts
0.200–0.900 v (up to 5.0 at wide
open throttle)
IAC Position
Counts
5–60
BPW Bank 1
mS
0–999.9
Air Fuel Ratio
Ratio
14.6:1 (Varies)
Spark
Degrees
Varies
MAP
kPa
25–35 kPa
BARO
kPa
65–100 kPa (varies with altitude and
with the BARO pressure)
Calculated Load
%
0–100
Vehicle Speed
mph
0
Oxygen Sensor Bank 1 Sensor 1
mV
0––1000 and varying
Oxygen Sensor Bank 1 Sensor 2
mV
0–1000 and varying
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