Isuzu Trooper (2000 year). Service manual — part 239

6E–85

TROOPER 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

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

Off

Off

Diagnosis, EVAP Canister
Purge Solenoid and EVAP
Vacuum Switch and Visual
Check; DTCs: P1441,
P1442

Fuel System
Status

Engine

Open
Loop/Close
d Loop

Closed Loop

Closed Loop

General Description

Fuel Level

Engine

Percent

—

—

Engine Fuel

Fuel Level
Sensor

Engine

Volts

—

—

Engine Fuel

Fuel Tank
Pressure

Engine

Volts

1.02 – 1.86

1.02 – 2.57

General Description and
Operation

Pressure
Sensor

in. H2O

—

—

O eration

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

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

6E–86

TROOPER 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 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

0-80

°

C, depends

on underhood

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

Millisecond
s

2.0-4.0

2.5-4.0

General Description, Fuel
Metering, Fuel Injector

Inj. Pulse Bank
2

Engine

Millisecond
s

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
Percent

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
Percent

100 to 150
counts, –22% to
+17%

100 to 150
counts, –22% to
+17%

Diagnosis, Fuel Trim
System Monitor; DTCs:
P0171

MAF (Mass Air
Flow)

Engine

Grams per
second

2.85-6.65

9.5-16.5

General Description and
Operation, MAF; DTCs:
P101, P0102, P0103

6E–87

TROOPER 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

MAP kPa
(Manifold
Absolute

Engine

Kilopascals

23-40

19-32

General Description and
Operation, Manifold
Absolute Pressure (MAP)

Absolute
Pressure)

Volts

0.65-1.32

0.46-1.10

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

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

6E–88

TROOPER 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 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/Inac
tive

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

Percent

3–13

12–21

General Description and
Operation, Throttle
Position (TP) Sensor

TP Sensor 2
(Throttle
Position Sensor
2)

Engine

Percent

87–97

79–88

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