Content .. 93 94 95 96 ..

Volkswagen Golf / Golf GTI / Golf Variant. Service manual - part 95

DTC /

Descrip‐

tion

Monitor

Strategy

Descrip‐

tion

Malfunction Crite‐

ria and Threshold

Value

Secondary Parame‐

ters with Enable

Conditions

Monitoring

Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

P0087

Fuel

Rail/

System

Pres‐

sure -

Too Low

Bank 1

Fuel Sys‐

tem Pres‐

sure Sen‐

sor, High

Pressure

Side Out

Of Range

Low

• Deviation be‐

tween refer‐

ence fuel pres‐

sure set point

and current fuel

pressure >

2,000.10 kPa

• Case 1:
• Fuel mass con‐

troller output

-50.0 – 50.0 %

• High pressure

controller out‐

put > 30 mg

• Fuel pressure <

3,500.31 kPa

• Case 2:
• Fuel pump at

max limit

• Mass fuel flow

set point <

1389.0 mg/rev

• Fuel pressure <

34,777.60 kPa

• Engine speed >

600 RPM

• EVAP purge

adaptation < 22

• ECT >= 63 °C
• IAT < 90 °C
• Lambda control

closed loop

• 4.5 s
• Contin‐

uous

• 2

DCY

– Check the fuel

pressure, refer

to the repair

manual for prop‐

er procedures.

– Check the Fuel

Pressure Sen‐

sor - G247- . Re‐

fer to

– Check the Fuel

Pressure Regu‐

lator Valve -

N276- . Refer to

– Check the Fuel

Pump Control

Module - J538- /

Fuel Delivery

Unit - GX1- . Re‐

fer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

DTC /

Descrip‐

tion

Monitor

Strategy

Descrip‐

tion

Malfunction Crite‐

ria and Threshold

Value

Secondary Parame‐

ters with Enable

Conditions

Monitoring

Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

Fuel Sys‐

tem Pres‐

sure Sen‐

sor, High

Pressure

Side Ra‐

tionality

Check

Low

• Fuel mass con‐

troller output

-50.0 – 50.0 %

• And
• High pressure

controller out‐

put > 35 mg

• And
• Deviation be‐

tween fuel

pressure set

point and cur‐

rent fuel pres‐

sure > 2,000.10

kPa and fuel

pressure >=

3,500.31 kPa

• Engine speed

608 – 6,816 RPM

• Mass fuel flow set

point 15.01 –

1,389.0 mg/rev

• For time after re‐

quest for mass

fuel flow set point

>= 5.0 s

• Engine start not

active

• Time after engine

start > 10.0 s

• Engine warm-up

n.a.

• Catalyst heating

not active

• Full load n.a.
• Catalyst purge

n.a.

• Lambda control

n.a.

• Evap purge func‐

tionality diagno‐

sis n.a.

• And
• Choice of:
• Canister load <=

n.a. [-]

• Or
• Evap purge valve

n.a.

P0092

Fuel

Pres‐

sure

Regula‐

tor 1

Control

Circuit

High

Fuel Con‐

trol Valve

Short To

Battery

Plus (Low

Side)

• Current low

side (hardware

values) > 13.5

– 17.0 A

• Ignition on
• Or
• Ignition off (dur‐

ing ECM keep

alive-time)

• And
• Actuator com‐

manded on

• 0.8 s
• Contin‐

uous

• 2

DCY

– Check the Fuel

Pressure Regu‐

lator Valve -

N276- . Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

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

Monitoring

Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

Fuel Con‐

trol Valve

Short To

Battery

Plus

(High

Side)

• Voltage high

side (hardware

values) < 1.92

– 2.21 V

• Ignition on
• Or
• Ignition off (dur‐

ing ECM keep

alive-time)

• And
• Actuator com‐

manded off

P00B7

Engine

Coolant

Flow

Low/

Per‐

for‐

mance

Rotary

Coolant

Valve

Function‐

al Check

• Diff. previous

and actual po‐

sition of RVC <

4.0°

• ECT @ cylinder

head > 11° C

• RCV position

0.00 – 270.0°

• Diff. previous ac‐

tual and target

position of RCV >

5.0°

• And
• RCV adaptation

finished

• Or
• RCV adaptation

not active

• 3.0 s
• Contin‐

uous

• 2

DCY

– Check coolant

system for leaks

or damage.

– Check the Cool‐

ant Thermostat

and the Engine

Temperature

Control Actuator

- N493- . Refer

P0106

Manifold

Abso‐

lute

Pres‐

sure/

Baro‐

metric

Pres‐

sure

Sensor

Circuit

Range/

Per‐

for‐

mance

Manifold

Pressure

Sensor

By En‐

gine

Standing:

Rationali‐

ty Check

During

Engine

Off

• Diff. barometric

pressure vs. in‐

take manifold

pressure >=

8.50 kPa

• Or
• Diff. upstream

throttle pres‐

sure vs. intake

manifold pres‐

sure >= 8.50

kPa

• Case 1: Engine

stop during DCY

• Engine stopped
• Vehicle speed < 1

mph

• Engine stop >=

5.0 s

• For time >= 10.0 s
• Case 2: Engine

stop at start of

DCY

• Engine stop stop‐

ped

• Vehicle speed < 1

mph

• Engine stop >=

5.0 s

• 3.0 s
• Contin‐

uous

• 2

DCY

– Check the In‐

take Manifold

Sensor - GX9- .

Refer to

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

3. Diagnosis and Testing

DTC /

Descrip‐

tion

Monitor

Strategy

Descrip‐

tion

Malfunction Crite‐

ria and Threshold

Value

Secondary Parame‐

ters with Enable

Conditions

Monitoring

Time

Length

MIL Il‐

lum.

Component Diag‐

nostic Procedure

Manifold

Pressure

Sensor

By En‐

gine

Standing:

Rationali‐

ty Check

During

ECM

Keep

Alive-

Time:

• Diff. upstream

throttle pres‐

sure @ engine

off vs. intake

manifold pres‐

sure @ engine

off > 8.50 kPa

• And
• Diff. intake

manifold pres‐

sure @ engine

stop vs. intake

manifold pres‐

sure @ idle

speed < n.a.

kPa

• Or
• Diff. barometric

pressure vs. in‐

take manifold

pressure >=

8.50 kPa

• And
• Diff. intake

manifold pres‐

sure @ engine

stop vs. intake

manifold pres‐

sure @ idle

speed < n.a.

kPa

• Or
• Intake manifold

pressure (raw

value) < 0.00; >

543.40 kPa

• Engine stop
• vehicle speed < 1

mph

• Delay time in

ECM keep alive-

time > 10.0 s

• Engine stop >=

5.0 s

• Barometric pres‐

sure sensor volt‐

age 0.20 – 4.80 V

• Intake manifold

pressure sensor

voltage 0.20 –

4.80 V

• Turbocharger

boost pressure

sensor voltage

0.20 –4.80 V

Intake Air

System

Rationali‐

ty Check

• General condi‐

tions:

• Filtered lamb‐

da controller in‐

cluded correc‐

tion and adap‐

tion < -30.0 %

• And
• Deviation throt‐

tle area control‐

ler > 45.0 %

• Throttle position

> 0.0° TPS

• Throttle position

< 100.003° TPS

• Engine speed >

576; < 3008 RPM

• Modeled pres‐

sure quotient >

0.27; < 0.60 [-]

• Engine running
• Throttle actuator

commanded on

• Time after engine

start > 5.0 s

• Throttle position

sensor failure not

detected

• 5.0 s
• Contin‐

uous

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

Rep. Gr. ST - Generic Scan Tool

Content .. 93 94 95 96 ..