Opel Frontera UBS. Service 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
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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