PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 500 / 892

Using the diagnostic tester DS-21
1. Checking the operation of the vapour bleed-
ing control system
•
With the ignition switch set to OFF,
connect the diagnostic tester DS-21 to
the Data Link Connector through the
special tool.
Specific tooling
020618Y Cable harness for connecting the
OBD Connector and the Diagnostic Tester
•
Disconnect the pipe that goes from the
active carbon filter to the vacuum
switching valve.
•
Set the ignition switch to ON and press
the tester main switch. Clear the diag-
nostic failure code. Select the "VSV
Bleeding" from the "Actuator control".
•
When switching ON and OFF, check
the operation of the vacuum switching
valve for bleeding. VSV OFF, no air
continuity when air is blown into the
pipe. VSV ON, air continuity when air
is blown into the pipe.
KEY:
1 . Bleeding side
2 . Air blown
3 . Atmospheric hole
4 . Tank side
2. Checking the bleeding pipe and passage
•
"Unlock" the vacuum switching valve to
return the bleeding valve to original
working conditions.
•
Start the engine and let it run.
•
Disconnect the pipe that goes from the
vacuum switching valve to the inlet
manifold.
Iniection System
PORTER 1.3 16V
IS - 500