Get Exhaust emissions test -> Exhaust emissions test for petrol engines without OBD Guide for Volkswagen Lupo 2 Door First Generation (1998-2005)

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

5

Exhaust emissions test

Note

♦ Please observe the country specific legal regulations.

♦ The exhaust emissions test described below has been created

according to the legal regulations valid in Germany.

Exhaust emissions test for petrol engines without OBD:

⇒ page 113

Disturbance variable for lambda control circuit test ⇒ page 120

Exhaust emissions test for petrol engines with OBD:

⇒ page 125

Exhaust emissions test for diesel engines without OBD:

⇒ page 127

5.1

Exhaust emissions test for petrol en‐

gines without OBD

Note

♦ All test conditions and data required for exhaust emissions

test: ⇒ Data sheets for exhaust emissions test

♦ The ignition timing is determined by the control unit and cannot

be displayed. Adjustment is not possible.

♦ Idling speed and CO content are not adjustable (check only).

For deviations from test value: carry out repair measures.

♦ The CO content is regulated by the lambda regulation. Faults

in the lambda regulation are detected in self-diagnosis and

stored in fault memory.

♦ Faults identified (engine electronics) when fault memory is

read must be rectified and the fault memory then cleared.

♦ To prevent injuries to personnel and/or damage to ignition and

injection system, the ignition system wiring (including high

voltage wiring) should be connected and disconnected only

with ignition switched off.

Special tools and workshop equipment required

♦ Exhaust emissions station - VAS 6300-

♦ Adapter for older vehicles - VAS 5051/2-

♦ or:

5. Exhaust emissions test

113

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

♦ Engine speed adapter - VAS 5087-

♦ ⇒ Data sheets for exhaust emissions test

Note

♦ It is only possible to carry out an exhaust emissions test when

all units of the exhaust emissions station - VAS 6300- are con‐

nected properly and combined with each other according to

operating instructions.

♦ All work to be performed is displayed by the exhaust emissions

station - VAS 6300- .

Test prerequisites:

•

All test conditions and data required for exhaust emissions test

are found on EET data sheet for the respective engine.

•

For bar code reading the EET data sheet must be printed out.

Automatic gearbox: selector lever in position “P” or “N”.

Manual gearbox: gear lever in neutral

Parking brake applied

Vehicles ►08.00

– Lever cover out of centre console.

– Connect exhaust emissions station - VAS 6300- with ignition

switched off.

Vehicles 09.00►

– Pull ashtray insert out of centre console.

– Connect exhaust emissions station - VAS 6300- with ignition

switched off.

– Perform exhaust emissions test according to instructions on

display.

Initial screen:

– Select button -arrow- “exhaust emissions test”.

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5. Exhaust emissions test

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

An overview is displayed to select the respective EET type.

– Select “EET petrol” -arrow-.

The display for warm-up phase appears.

– Continue exhaust emissions test according to instructions on

display.

– If the EET specification selection is displayed, select respec‐

tive “EET specification selection” -arrow-.

♦ When exhaust emissions test is performed for the first time,

either select “Standard values”,

♦ Or “Last vehicle” when an exhaust emissions test is to be car‐

ried out again.

– Select “Continue” on display, see -item 1-.

Vehicle data input:

The vehicle data input menu is displayed.

5. Exhaust emissions test

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Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Enter vehicle data from vehicle identification card at positions

-1...7-.

♦ -1- Vehicle manufacturer: “e.g. VOLKSWAGEN - VW”

♦ -2- Vehicle type: “e.g. Lupo”

♦ -3- Key number for 1: “e.g. 11 11”

♦ -4- Key number for 2: “e.g. 0603” (vehicle registration docu‐

ment)

♦ -4- Key number for 2.1 (code for 2): “e.g. 0603” (vehicle reg‐

istration certificate part 1)

♦ -5- Key number for 3: “e.g. 358” (vehicle registration docu‐

ment)

♦ -5- Key number for 2.2 (code for D2): “e.g. 358” (vehicle reg‐

istration certificate part 1)

♦ -6- Engine code “e.g. AQY”

♦ -7- Registration number: “e.g. WOB-HH 1234”

♦ -8- Vehicle identification number: “e.g.

WVWZZZ1JZYW123456”

– Enter mileage at -item 9- “e.g. 32000”.

Note

♦ Further functions can be called up using GoTo button.

♦ The test can be terminated using GoTo button.

Specified data input for EET:

Note

♦ If specifications are not available as bar code, they are to be

entered manually.

♦ All test conditions and data required for exhaust emissions

test, see EET data sheet for respective engine.

Manual specified data input for EET:

– Perform manual data input according to instructions on dis‐

play.

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5. Exhaust emissions test

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Enter displayed values on EET data sheet in column “Test

values for exhaust emissions test” on display as follows:

1 - Test speed (idling speed)

2 - Warm-up phase for catalytic converter

3 - Engine temperature

4 - Increased idling speed

5 - CO content at increased idling speed

6 - Lambda at increased idling speed

7 - Idling speed

8 - Select regulating probe type, either “step-type probe”, or

“broad-band probe” -item 1-.

9 - Lambda probe value

– When all data have been entered properly, press Continue

button -arrow-.

Specified data input for EET as bar code:

– If specified data for EET are available as bar code, read bar

code of EET data sheet with bar code reader.

All data required are shown on display.

– Press ► button -arrow- to proceed.

5. Exhaust emissions test

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Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

Visual inspection:

– Follow instructions on display.

– Perform visual check.

– If visual check is OK press “OK” button -arrow-.

Note

When "not OK" button is pressed a check will be carried out

The visual check is displayed with the request to connect the ca‐

bles to the vehicle.

– Follow instructions on display.

– Switch off ignition.

– Connect adapter for older vehicles - VAS 5051/2- or engine

speed adapter - VAS 5087/- to the vehicle.

Note

♦ Follow operating instructions for engine speed adapter - VAS

5087A- , -VAS 5087- !

♦ Strictly follow the safety precautions in the operating instruc‐

tions!

– Select switch position “4” for terminal 4 using “switch 1/4” of

engine speed adapter - VAS 5087A- .

– Turn switch for number of cylinders to “4” (4-cylinder engine).

– Connect a wire from adapter - VAS 5087/1- to engine speed

adapter - VAS 5087A- (socket -VAS 5087/1- ).

– Using the other cable from adapter - VAS 5087/1- , make a

connection to the vehicle battery, red clip to positive - black

clip to negative.

– Start engine and run it at idling speed.

– Press the Start button on engine speed adapter - VAS

5087A- . The red signal lamp must flash for about 10 seconds.

Then the green signal lamp must light up.

– Insert emission probe in exhaust tail pipe.

Note

The exhaust emissions test is only continued when the test probe

is in the exhaust tail pipe.

Catalytic converter conditioning:

It is automatically switched to warm-up phase of catalytic con‐

verter.

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5. Exhaust emissions test

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Follow instructions on display.

Measurement starts when the engine speed has reached the re‐

quired level.

– Maintain engine speed in required engine speed range.

The remaining time to perform the warm-up phase is displayed

-arrow A-.

Warm-up phase:

It is automatically switched to display for measuring engine tem‐

perature.

– Follow instructions on display.

Note

This is only indicated on display if engine temperature has not

reached 80℃.

– Bring engine to required temperature.

Measurement at increased idling speed:

It is automatically switched to display for measuring increased

idling speed.

– Follow instructions on display.

Measurement starts when the engine speed has reached the re‐

quired level.

Note

♦ Measurement can be skipped using ► button, i.e. the exhaust

emissions test has failed.

♦ Measured values are reset using ← button, and the test can

be repeated.

– Maintain engine speed in required engine speed range.

The remaining time to perform measurement is displayed

-arrow A-.

5. Exhaust emissions test

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Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

Measuring idling speed and CO content:

It is automatically switched to display for measuring the idling

speed and CO content.

Measurement starts when the engine speed has reached the re‐

quired level.

The remaining time to perform measurement is displayed

-arrow A-.

Regulating probe test:

It is automatically switched to display for regulating probe test.

Measurement starts when the engine speed has reached the re‐

quired level.

– Maintain engine speed in required engine speed range.

The remaining time to perform measurement is displayed

-arrow A-.

Evaluation:

When the exhaust emissions test is performed, the log is shown

on display.

The test result is displayed.

Now remarks concerning the exhaust emissions test can be en‐

tered -arrow A-. They will then be included in the test log.

– When the exhaust emissions test is classed as passed, select

-arrow B- “EET sticker issued” in drop-down menu and date.

– Then confirm with “Yes”, see -arrow C-.

– Then press

After confirming, the two “TEST CERTIFICATES” are printed out

automatically.

– If a further test certificate is required, press -arrow A- “Print”

button.

– Follow instructions on display.

– Take emission probe out of exhaust tail pipe.

– Then press ► button -arrow B-.

The exhaust emissions test is completed, a new exhaust emis‐

sions test can be performed.

5.1.1

Disturbance variable for lambda control

circuit test

Carry out “Control circuit test basic procedure” as follows:

Engine codes ALD, ANV

– Activate disturbance variable within 60 seconds as follows:

120

5. Exhaust emissions test

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Pull 4-pin connector off coolant temperature sender - G62- to‐

gether with coolant temperature sender - G2- -arrow-.

The control unit must recognise the disturbance variable and

eliminate through regulation within 60 seconds.

If this message appears on the display:

– Fit connector to coolant temperature sender.

The control unit must recognise deactivation of the disturbance

variable and eliminate through regulation within 60 seconds.

Note

If disturbance variable has not been recognised, repeat Lambda

control circuit test.

Engine codes AER, AFK, AHW, AKQ, ALL

– Activate disturbance variable within 60 seconds as follows:

Engine codes AER, ALL

– Pull 4-pin connector -1- off coolant temperature sender -2-.

The control unit must recognise the disturbance variable and

eliminate through regulation within 60 seconds.

Note

The throttle valve must not be operated during the test, otherwise

the disconnected connector will be recognised as fault by the self-

diagnosis and stored in the fault memory.

Engine codes: AFK, AHW, AKQ

5. Exhaust emissions test

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Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Pull 4-pin connector -arrow- off coolant temperature sender.

The control unit must recognise the disturbance variable and

eliminate through regulation within 60 seconds.

Note

The throttle valve must not be operated during the test, otherwise

the disconnected connector will be recognised as fault by the self-

diagnosis and stored in the fault memory.

Continued for all vehicles:

– Fit connector to coolant temperature sender.

Note

♦ When connecting the connector always ensure that it is fitted

properly and engages noticeably.

♦ The control circuit test is also passed when the disturbance

variable has been recognised in one direction and has been

eliminated through regulation.

♦ If the disturbance variable has not been recognised (lambda

change insufficient) repeat lambda control circuit test.

If actual figures deviate from specifications: Repair measures and

again perform exhaust emissions test!

After completing exhaust emissions test note the following:

♦ Reconnect all hoses and connections that have been discon‐

nected or separated for checking and adjusting purposes.

♦ Operate assemblies e.g. power assisted steering, automatic

gearbox, air conditioning system and check that the engine

operates smoothly under these load conditions.

Engine code APE

– Activate disturbance variable within 60 seconds as follows:

122

5. Exhaust emissions test

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Pull 4-pin connector off coolant temperature sender - G62-

with coolant temperature sender - G2- -arrow-.

The control unit must recognise the disturbance variable and

eliminate through regulation within 60 seconds.

Note

The throttle valve must not be operated during the test, otherwise

the disconnected connector will be recognised as fault by the self-

diagnosis and stored in the fault memory.

– Deactivate the disturbance variable as follows:

– Fit connector to coolant temperature sender.

Note

When connecting the connector always ensure that it is fitted

properly and engages noticeably.

The control unit must recognise deactivation of the disturbance

variable and eliminate through regulation within 60 seconds.

If actual figures deviate from specifications: Carry out repair

measures and again perform exhaust emissions test!

Note

♦ Reconnect all hoses and connections that have been discon‐

nected or separated for checking and adjusting purposes.

♦ Operate assemblies e.g. power assisted steering, automatic

gearbox, air conditioning system and check that the engine

operates smoothly under these load conditions.

Engine code AQQ

– Activate disturbance variable within 60 seconds as follows:

5. Exhaust emissions test

123

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Pull 4-pin connector off coolant temperature sender - G62-

with coolant temperature sender - G2- -arrow-.

The control unit must recognise the disturbance variable and

eliminate through regulation within 60 seconds.

Note

The throttle valve must not be operated during the test, otherwise

the disconnected connector will be recognised as fault by the self-

diagnosis and stored in the fault memory.

– Deactivate the disturbance variable as follows:

– Fit connector to coolant temperature sender.

Note

When connecting the connector always ensure that it is fitted

properly and engages noticeably.

The control unit must recognise deactivation of the disturbance

variable and eliminate through regulation within 60 seconds.

♦ The disturbance variable has been recognised only in one di‐

rection.

♦ The control circuit test is also completed when the disturbance

variable has been recognised only in one direction.

If actual figures deviate from specifications: Carry out repair

measures and again perform exhaust emissions test!

Note

♦ Reconnect all hoses and connections that have been discon‐

nected or separated for checking and adjusting purposes.

♦ Operate assemblies e.g. power assisted steering, automatic

gearbox, air conditioning system and check that the engine

operates smoothly under these load conditions.

Engine code AHT

– Activate disturbance variable within 60 seconds as follows:

124

5. Exhaust emissions test

Lupo 1999 ➤ , Lupo 3L 1999 ➤

Maintenance - Edition 03.2018

– Pull 4-pin connector off coolant temperature sender - G62-

with coolant temperature sender - G2- -1-.

The control unit must recognise the disturbance variable and

eliminate through regulation within 60 seconds.

Note

The throttle valve must not be operated during the test, otherwise

the disconnected connector will be recognised as fault by the self-

diagnosis and stored in the fault memory.

– Deactivate the disturbance variable as follows:

– Fit connector to coolant temperature sender.

Note

When connecting the connector always ensure that it is fitted

properly and engages noticeably.

The control unit must recognise deactivation of the disturbance

variable and eliminate through regulation within 60 seconds.

♦ The disturbance variable has been recognised only in one di‐

rection.

♦ The control circuit test is also completed when the disturbance

variable has been recognised only in one direction.

♦ Continue test sequence by pressing the F1 button.

If actual figures deviate from specifications: Carry out repair

measures and again perform exhaust emissions test!

Note

♦ The test data can be printed out by pressing the F3 button.

♦ Reconnect all hoses and connections that have been discon‐

nected or separated for checking and adjusting purposes.

♦ Operate assemblies e.g. power assisted steering, automatic

gearbox, air conditioning system and check that the engine

operates smoothly under these load conditions.

5.2

Exhaust emissions test for petrol en‐

gines with OBD

Special tools and workshop equipment required

♦ Exhaust gas testing station L - VAS 7320 A-

5. Exhaust emissions test

125

Exhaust emissions test -> Exhaust emissions test for petrol engines without OBD for Your Volkswagen Lupo 2 Door First Generation (1998-2005)

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