Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 178
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P230D
Cylinder
4 Air-
Fuel Ra‐
tio Im‐
balance
- Adjust‐
ment At
Limit
During
Balance
Fuel Sys‐
tem A/F
imbal‐
ance: ra‐
tionality
check
• Cylinder mis‐
fire counter >
2.00 [-]
• Fuel pressure
setpoint not cali‐
brated kPa
• Modeled catalyst
temperature @
start <= 850° C
• Lambda set value
0.97 – 1.03 [-]
• Catalyst heating
not active
• Engine rough‐
ness signal valid
• Fuel cut off not
active
• AAT >= -48° C
• Barometric pres‐
sure >= 73.00
kPa
• And
• Min. injection
time not reached
• And
• Choice of:
• Catalyst diagno‐
sis n.a.
• Or
• Catalyst diagno‐
sis n.a.
• Depending on
catalyst diagno‐
sis:
• Canister purge
(conditions) n.a.
• Or
• Evap purge valve
n.a.
• Or
• Evap purge n.a.
• And
• O2S dynamic di‐
agnosis n.a.
• O2S delay diag‐
nosis n.a.
• Lambda control
closed loop
• Catalyst purge
not active
• 90
(does
not
run in
FTP) s
• Once /
DCY
• 2
DCY
– Check the Fuel
Injectors . Refer
to
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
385
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
• Canister load <=
2.00 [-]
• Engine no full
load
• Segment adapta‐
tion finished
• Catalyst damag‐
ing misfire not de‐
tected
• Emission thresh‐
old misfire not de‐
tected
• No gear switch
for segments >=
90.00 [-]
• Segments after
start > 0.00 [-]
• Time after engine
start > 0.0 s
• Rough road not
detected
• And
• Min. fuel mass >=
0.00 mg/rev
• Intake manifold
runner flap posi‐
tion change not
active
• Injection mode
change (DFI/MFI)
not equipped
• Valve lift position
change not active
• And
• Depending on
gear
• 1st gear not ac‐
tive
• 2nd gear not ac‐
tive
• 3rd gear not ac‐
tive
• 4th gear active
• 5th gear active
• 6th gear active
• 7th gear active
• 8th gear not ac‐
tive
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
386
Rep. Gr. ST - Generic Scan Tool
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
• And
• Integrated air
mass >= 1.00 –
12.00 kg
• Diff. engine
speed vs. dynam‐
ic engine speed <
200 rpm
• Diff. air mass vs.
dynamic air mass
< 29.99 mg/rev
• ECT @ cylinder
head 60 – 143° C
• Adaptation cycles
<= 255.00 [-]
• Engine speed
1,312 – 3,008
rpm
• And
• Fuel mass set‐
point lower range
>= 11.00 mg/rev
• Fuel mass set‐
point upper range
<= 32.00 mg/rev
P2414
O2 Sen‐
sor Ex‐
haust
Sample
Error
Bank 1
Sensor
1
Oxygen
Sensors
Front Ra‐
tionality
Check
• Pump current
correction
(nernst-cell) >
1.2 mA
• O2S front ready
• Fuel cut off not
active
• Cylinder shut off
not active
• Depending on
engine state:
• Engine part load
• Or
• Engine full load
• Or
• Engine idle for
time >= 3.0 s
• 10.0 s
• Con‐
tinu‐
ous
• 2
DCY
– Check the Oxy‐
gen Sensor 1
Before Catalytic
Converter -
GX10- . Refer to
.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
387
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P2431
AIR Sys‐
tem Air
Flow/
Pres‐
sure
Sensor
Circuit
Range/
Per‐
for‐
mance
Bank 1
Secon‐
dary Air
System
Pressure
Sensor
Rationali‐
ty Check
• Difference be‐
tween AIR
pressure and
barometric
pressure > 6.0
kPa
• And
• Difference be‐
tween AIR
pressure and
intake manifold
pressure > 6.0
kPa
• Engine stop
• For time > 0.0 s
• 0.1 s
• Once /
DCY
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
P2432
AIR Sys‐
tem Air
Flow/
Pres‐
sure
Sensor
Circuit
Low
Bank 1
Secon‐
dary Air
System
Pressure
Sensor
Out Of
Range
Low
• Sensor voltage
< 0.50 V
• 0.1 s
• Con‐
tinu‐
ous
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
P2433
AIR Sys‐
tem Air
Flow/
Pres‐
sure
Sensor
Circuit
High
Bank 1
Secon‐
dary Air
System
Pressure
Sensor
Out Of
Range
High
• Sensor voltage
> 4.50 V
• 0.1 s
• Con‐
tinu‐
ous
• 2
DCY
– Check the Sec‐
ondary Air Sys‐
tem - GX24- .
Refer to
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
388
Rep. Gr. ST - Generic Scan Tool
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