Exhaust Emissions Test With Obd - Volkswagen Amarok 2011 Maintenance Manual

Amarok 2011 ➤
Maintenance - Edition 01.2011
WARNING
If the governed speed (maximum speed) is exceeded, lift off
accelerator pedal immediately and perform repair measures.
– If the values are not within specified range, a repair measure
must be made.
If the unit detects a valid throttle burst (the speed increases con‐
tinually during measuring period „tx"), the following is indicated on
display:
If the following is indicated on display:
The display remains „frozen" during the evaluation phase (ap‐
prox. 15 seconds).
After the evaluation phase, the display changes to:
The arrow pointing upwards indicates that the unit is waiting for
the next throttle burst.
Repeat test 4 times.
The following is indicated on display after each throttle burst:
In this way, the unit measures and registers at least four throttle
bursts. After the fourth and for each further throttle burst se‐
quence, an average of the last three measurements is performed.
The following is indicated on display after each throttle burst:
After 10 seconds, this display changes to:
After 5 seconds, this display changes to:
The display remains until a further throttle burst is performed or
another measurement is called up.
If the opacity figures are equal to or less than the prescribed fig‐
ures, cease measurements.
If the determined opacity figure is above the prescribed figure,
locate fault within repair measure framework ⇒ Fault finding en‐
gine
5.4

Exhaust emissions test with OBD

Note
The following exhaust emission test description is only appli‐
♦
cable in countries where specific exhaust emission regulations
have to be adhered to.
In motor vehicles with spark ignition engine or compression
♦
ignition engine which were initially registered for use on the
road as of 01.01.2008, measurement and processing of the
exhaust emissions behaviour are omitted if all readiness co‐
des are set.
If „NOT" all readiness codes are set, an exhaust emissions test
♦
must be performed ⇒ page 134
144
5. Exhaust emissions test
.
n rpm tB s k 1/m
XXX XXXX -.- -.-
n rpm tB s k 1/m
XXX XXXX X.XX X.XX
n rpm tB s k 1/m
XXX XXXX X.XX X.XX
n rpm tB s k 1/m
XXX XXXX X.XX X.XX
tB s k 1/m
Average X.XX X.XX
tB s k 1/m
Average X.XX X.XX
Gas T °C M
1 XX -
Gas T °C M
1 XX -
Gas T °C M
X XX -
Gas T °C M
X XX -
band width M
X.XX -
band width M
XX -