Isuzu Trooper (1998-2002 year). Manual — part 428
6E–82
6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS
Tech 2
Parameter
Refer To
Typical Data
Values
(2500 RPM)
Typical Data
Values (IDLE)
Units Displayed
Data List
EGR Duty
Cycle
Engine
Percent
0%
0%
General Description and
Operation, Linear EGR
Operation and Results of
Incorrect Operation
EGR
Feedback
Engine
Volts
0.45-0.80
0.45-0.80
—
EGR
Normalized
Engine
Percent
0%
0%
—
Engine Load
Engine
Percent
2.0% - 5.5%
8.0% - 16.0%
General Description and
Operation, Mass Air Flow
(MAF) Sensor
Time From
Start
Engine
Sec
Varies. Resets
at each engine
start.
Varies. Resets
at each engine
start.
—
Engine Speed
Engine
RPM
Within –50 to
+100 of
“Desired Idle”
Actual engine
speed
—
EVAP Purge
Solenoid
Engine
Percent
0%
0%
Diagnosis, EVAP
Emission Canister Purge
Valve Check
EVAP Vent
Valve
Engine
On/Off
—
—
—
Fuel System
Status
Engine
Open
Loop/Closed
Loop
Closed Loop
Closed Loop
General Description
Fuel Level
Engine
Percent
—
—
—
Fuel Level
Sensor
Engine
Volts
—
—
—
Fuel Tank
(Vapor)
Engine
Volts
—
—
—
Pressure
Sensor
in. H2O
—
—
—
Fuel Pump
Engine
On/Off
On
On
Engine Fuel
HO2S Bank 1
Sen.1
(millivolts)
O2
Sensor
Data
Millivolts
50-950
changing
quickly
50-950, always
changing
quickly
General Description and
Operation, Fuel control
HO2S
HO2S Bank 1
Sen.2
(millivolts)
(Auto Trans)
O2
Sensor
Data
Millivolts
200-700
changing slowly
250-650
changing slowly
General Description and
Operation, Fuel Metering
System
HO2S Bank 1
Sen.2
(millivolts)
(Manual
Trans)
O2
Sensor
Data
Millivolts
50-950
changing
quickly
50-950
changing
quickly
General Description and
Operation, Fuel Metering
System
HO2S Bank 1
Sen.3
(millivolts)
(Manual
Trans)
O2
Sensor
Data
Millivolts
200-700
changing slowly
250-650
changing slowly
General Description and
Operation, Catalyst
Monitor Heated Oxygen
Sensor (Manual Trans)
HO2S Bank 2
Sen.1
(millivolts)
O2
Sensor
Data
Millivolts
50-950
changing
quickly
50-950
changing
quickly
General Description and
Operation, Fuel Control
HO2S
6E–83
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Tech 2
Parameter
Refer To
Typical Data
Values
(2500 RPM)
Typical Data
Values (IDLE)
Units Displayed
Data List
HO2S Bank 2
Sen.2
(millivolts)
(Auto trans)
O2
Sensor
Data
Millivolts
200-700
changing slowly
250-650
changing slowly
General Description and
Operation, Fuel Metering
System
HO2S Bank 1
Sen.1
(ready/not
ready)
O2
Sensor
Data
Ready
Yes/No
Ready
Yes
Ready
Yes
General Description and
Operation, Fuel Control
HO2S; DTC: P0135
HO2S Bank 2
Sen.1
(ready/not
ready)
O2
Sensor
Data
Ready
Yes/No
Ready
Yes
Ready
Yes
General Description and
Operation, Fuel Control
HO2S
HO2S
Warm-Up Time
Bank 1 Sen.1
O2
Sensor
Data
Seconds
25-45
25-45
General Description and
Operation, Fuel Control
HO2S
HO2S
Warm-Up Time
Bank 1 Sen.2
O2
Sensor
Data
Seconds
60-100
60-100
General Description and
Operation, Fuel Control
HO2S
HO2S
Warm-Up Time
Bank 2 Sen.1
O2
Sensor
Data
Seconds
25-45
25-45
General Description and
Operation, Fuel Control
HO2S
HO2S
Warm-Up Time
Bank 2 Sen.2
O2
Sensor
Data
Seconds
60-100
60-100
General Description and
Operation, Catalyst
Monitor Heated Oxygen
Sensor (Auto Trans)
IAT (Intake Air
Temp)
Engine
Degrees C,
Degrees F
0-100
°
C,
depends on
underhood
temperature
0-80
°
C,
depends on
underhood
temperature
General Description and
Operation, Intake Air
Temperature (IAT) Sensor
Illumination
Switch
Engine
Closed 0V/Open
12V
Closed 0V
Closed 0V
Refer to Section 8
Ignition
Voltage
Engine
Volts
12.8-14.1
12.8-14.1
General Description and
Operation, Electronic
Ignition System
Inj. Pulse Bank
1
Engine
Milliseconds
2.0-4.0
2.5-4.0
General Description, Fuel
Metering, Fuel Injector
Inj. Pulse Bank
2
Engine
Milliseconds
2.0-4.0
2.5-4.0
General Description, Fuel
Metering, Fuel Injector
Knock Present
Engine
No/Yes
No
No
General Description and
ION Sensing Module
Knock Signal
Engine
Percent
1
∼
4
1
∼
4
General Description and
ION Sensing Module
Knock Sensor
Retard
Engine
°
CA
0
0
General Description and
ION Sensing Module
Knock Counter
Engine
Counts
—
—
General Description
Long Term FT
Bank 1 (Long
Term Fuel
Trim)
Misfire
Counts and
Percentage
100 to 150
counts, –22%
to +17%
100 to 150
counts, –22%
to +17%
Diagnosis, Fuel Trim
System Monitor; DTCs:
P0171, P0172
Long Term FT
Bank 2 (Long
Term Fuel
Trim)
Misfire
Counts and
Percentage
100 to 150
counts, –22%
to +17%
100 to 150
counts, –22%
to +17%
Diagnosis, Fuel Trim
System Monitor; DTCs:
P0171
6E–84
6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS
Tech 2
Parameter
Refer To
Typical Data
Values
(2500 RPM)
Typical Data
Values (IDLE)
Units Displayed
Data List
MAF (Mass Air
Flow)
Engine
Grams per
second
3.0-7.0
12-20
General Description and
Operation, MAF; DTCs:
P101, P0102, P0103
MAP kPa
(Manifold
Absolute
Engine
Kilopascals
25-35
20-30
General Description and
Operation, Manifold
Absolute Pressure (MAP)
Absolute
Pressure)
Volts
0.8-1.3
0.5-1.0
Absolute Pressure (MAP)
Sensor; DTCs: P0106,
P0107, P0108
MIL
Engine
On/Off
Off
Off
On-Board Diagnostic
System Check
Misfire Cur. Cyl
#1
Misfire
Counts
0-2
0-2
DTC P0300
Misfire Cur. Cyl
#2
Misfire
Counts
0-2
0-2
DTC P0300
Misfire Cur. Cyl
#3
Misfire
Counts
0-2
0-2
DTC P0300
Misfire Cur. Cyl
#4
Misfire
Counts
0-2
0-2
DTC P0300
Misfire Cur. Cyl
#5
Misfire
Counts
0-2
0-2
DTC P0300
Misfire Cur. Cyl
#6
Misfire
Counts
0-2
0-2
DTC P0300
Misfire Hist.
Cyl #1
Misfire
Counts
0
0
DTC P0300
Misfire Hist.
Cyl #2
Misfire
Counts
0
0
DTC P0300
Misfire Hist.
Cyl #3
Misfire
Counts
0
0
DTC P0300
Misfire Hist.
Cyl #4
Misfire
Counts
0
0
DTC P0300
Misfire Hist.
Cyl #5
Misfire
Counts
0
0
DTC P0300
Misfire Hist.
Cyl #6
Misfire
Counts
0
0
DTC P0300
Misfire Failures
Since First Fail
Misfire
Counts
0
0
DTC P0300
Misfire Passes
Since First Fail
Misfire
Counts
0
0
DTC P0300
PNP
(Park/Neutral
Position)
Engine
P-N /
R-D-3-2-L
P-N
P-N
4L30-E Automatic
Transmission Diagnosis
Power
Enrichment
Engine
NO/YES
NO
NO
General Description and
Operation, Acceleration
Mode
PSP Switch
(Power
Steering
Pressure)
Engine
Normal/Hi
Normal
Pressure
Normal
Pressure
Refer to 2A Section
Spark
(Advance)
Engine
Degrees Before
Top Dead Center
15-22
34-44
General Description and
Operation, Electronic
Ignition System
6E–85
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Tech 2
Parameter
Refer To
Typical Data
Values
(2500 RPM)
Typical Data
Values (IDLE)
Units Displayed
Data List
Start-Up ECT
(Engine
Coolant Temp)
Engine
Degrees C,
Degrees F
Depends on
engine coolant
temperature at
time of start-up
Depends on
engine coolant
temperature at
time of start-up
General Description and
Operation, Engine
Coolant Temperature
(ECT) Sensor
Start-Up IAT
(Intake Air
Temp)
Engine
Degrees C,
Degrees F
Depends on
intake air
temperature at
time of start-up
Depends on
intake air
temperature at
time of start-up
General Description and
Operation, Intake Air
Temperature (IAT) Sensor
TCC Cruise
Brake Switch
Engine
Active/Inactive
Active
Active
Refer to Section 10
Total Misfire
Current Count
Misfire
Counts
0-5
0-5
DTC P0300
TP Sensor 1
(Throttle
Position
Sensor 1)
Engine
Percentage
6–12
12–16
General Description and
Operation, Throttle
Position (TP) Sensor
TP Sensor 2
(Throttle
Position
Sensor 2)
Engine
Percentage
88–94
86–90
General Description and
Operation, Throttle
Position (TP) Sensor
Throttle at Idle
Engine
No/Yes
Yes
No
General Description and
Operation, Throttle
Position (TP) Sensor
Upshift Lamp
(manual trans)
Engine
On/Off
Off
Off
Manual Transmission
Vehicle Speed
Engine
MPH / km/h
0
0
4L30-E Automatic
Transmission Diagnosis
Weak Cylinder
Misfire
Cylinder #
—
—
DTC P0300
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