Content .. 176 177 178 179 ..

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

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

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

Content .. 176 177 178 179 ..