Opel Frontera UBS. Manual - part 2261

 

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Opel Frontera UBS. Manual - part 2261

 

 

6E–80

6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS

MISFIRE CUR. CYL. #1 /#2 /#3 /#4 / #5 / #6 — Tech 2
Range 0-65535 Counts —
The misfire history counters display the relative level of
misfire that has been detected on each cylinder.  The
misfire history counters will not update or show any
activity until a misfire DTC (P0300) has become active.

MISFIRE FAILURES SINCE FIRST FAIL — Tech 2
Range 0-65535 Counts —
Indicates the number of 200 crankshaft revolution sample
periods during which the level of misfire was sufficiently
high to report a fail.

MISFIRE PASSES SINCE FIRST FAIL — Tech 2
Range 0-65535 Counts —
Indicates the number of 200 crankshaft revolution sample
periods during which the level of misfire was sufficiently
low to report a pass.

POWER ENRICHMENT — Tech 2 Displays ACTIVE
or INACTIVE —
“ACTIVE” displayed indicates that the PCM has detected
conditions appropriate to operate in power enrichment
mode.  The PCM will command power enrichment mode
when a large increase in throttle position and load is
detected. While in power enrichment mode, the PCM will
increase the amount of fuel delivered by entering open
loop and increasing the injector pulse width.  This is done
to prevent a possible sag or hesitation from occurring
during acceleration.

SPARK — Tech 2 Range –64

°

 to 64

°

 —

Displays the amount of spark advance being commanded
by the PCM on the IC circuit.

START-UP ECT — Tech 2 Range –40

°

C to 151

°

C

(–40

°

F to 304

°

F) —

Indicates the engine coolant temperature at the time that
the vehicle was started.  Used by the HO2S diagnostic to
determine if the last start-up was a cold start.

START-UP IAT — Tech 2 Range –40

°

C to 151

°

C

(–40

°

F to 304

°

F) —

Indicates the intake air temperature at the time that the
vehicle was started.  Used by the HO2S diagnostic to
determine if the last start-up was a cold start.

TOTAL MISFIRE CURRENT COUNT — Tech 2
Range 0-255 —
Indicates the total number of cylinder firing events that
were detected as being misfires during the last 200
crankshaft revolution sample period.

TP1 — Tech 2 Range 0%-100% —
TP (throttle position)  angle is computed by the PCM from
the TP sensor voltage.  TP angle should display “6-12%”
at idle and “79-83%” at wide open throttle.

TP2 — Tech 2 Range 0%-100% —
TP (throttle position)  angle is computed by the PCM from
the TP sensor voltage.  TP angle should display “88-94%”
at idle and “19-23%” at wide open throttle.

CATALYST PROTECTION MODE — Tech 2 Displays
YES or NO —
“YES” displayed indicates that the PCM has detected
conditions appropriate to operate in TWC protection
mode.  The PCM will decrease the air/fuel ratio to a value
that depends on mass air flow (higher mass air flow =
lower air/fuel ratio).

UPSHIFT LAMP (MANUAL TRANSMISSION)
VEHICLE SPEED — Tech 2 Range 0-255 km/h
(0-155 mph) —
The vehicle speed sensor signal is converted into km/h
and mph for display.

WEAK CYLINDER — Tech 2 Displays Cylinder
Number —
This indicates that the PCM has detected crankshaft
speed variations that indicate 2% or more cylinder firing
events are misfires.

Typical Scan Data Values

Use the Typical Scan Data Values Table only after the
On-Board Diagnostic System Check has been
completed, no DTC(s) were noted, and you have
determined that the on-board diagnostics are functioning
properly.  Tech 2 values from a properly-running engine
may be used for comparison with the engine you are
diagnosing.  The typical scan data values represent
values that would be seen on a normally-running engine.

NOTE: A Tech 2 that displays faulty data should not be
used, and the problem should be reported to the Tech 2
manufacturer.  Use of a faulty Tech 2 can result in
misdiagnosis and unnecessary replacement of parts.

Only the parameters listed below are referred to in this
service manual for use in diagnosis.  For further
information on using the Tech 2 to diagnose the PCM and
related sensors, refer to the applicable reference section
listed below.  If all values are within the typical range
described below, refer to the 

Symptoms section for

diagnosis.

Test Conditions

Engine running, lower radiator hose hot, transmission in
park or neutral, closed loop, accessories off, brake not
applied and air conditioning off.

6E–81

6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

3.5L V-6 Engine (Automatic and Manual Transmission)

Tech 2

Parameter

Data List

Units Displayed

Typical Data

Values (IDLE)

Typical Data

Values

(2500 RPM)

Refer To

A/C Clutch
Relay

Engine

On/Off

Off

Off

General Description and
Operation, A/C Clutch
Circuit Operation

A/C Request

Engine

Yes/No

No

No

General Description and
Operation, A/C Request
Signal

Air/Fuel Ratio

Engine

Ratio: _ to 1

14.6–14.7

14.6–14.7

General Description and
Operation, Fuel System
Metering Purpose

APP Sensor1

Engine

Percent

11–15

16–24

General Description and
Operation

APP Sensor2

Engine

Percent

85–89

74–82

General Description and
Operation

APP Sensor3

Engine

Percent

85–89

76–84

General Description and
Operation

Barometric
Pressure

Engine

kPa

61-104
(depends on
altitude and
barometric
pressure)

61-104
(depends on
altitude and
barometric
pressure)

General Description and
Operation

Brake Light
Switch

Engine

Open 0V/Closed
12V

Open 0V

Open 0V

Refer to Section 5

Check Trans
Lamp (Auto
Trans
)

Engine

On/Off

Off

Off

4L30-E Automatic
Transmission Diagnosis

Cruise Main
Switch

Engine

Active/Inactive

Inactive

Inactive

Refer to Section 10

Cruise Set
Switch

Engine

Active/Inactive

Inactive

Inactive

Refer to Section 10

Cruise Cancel
Switch

Engine

Active/Inactive

Inactive

Inactive

Refer to Section 10

Cruise
Resume
Switch

Engine

Active/Inactive

Inactive

Inactive

Refer to Section 10

Decel Fuel
Cutoff

Engine

Active/Inactive

Inactive

Inactive

General Description and
Operation, Deceleration
Mode

Desired EGR
Position

Engine

Percent

0%

0%

General Description and
Operation, EGR Pintle
Position Sensor

Desired Idle
Speed

Engine

RPM

700

800

General Description and
Operation

ECT (Engine
Coolant Temp)

Engine

Degrees C,
Degrees F

80-100

°

C

(176-212

°

F)

80-100

°

C

(176-212

°

F)

General Description and
Operation, Engine
Coolant Temperature
(ECT) Sensor

EGR Closed
Pintle Position

Engine

Steps

20-40

20-40

General Description and
Operation, EGR Pintle
Position Sensor

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

 

 

 

 

 

 

 

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