PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 512 / 892

•
With the ignition switch set to OFF, reset.
•
Set the special tool (sub-wiring harness).
Specific tooling
020463Y ECU-EFI interface cable harness to check the injection system electrical values.
•
Warm up the engine (only when the
engine can be started).
•
With the engine at idle speed or run-
ning, connect the (-) oscilloscope
probe to terminal 82 of the special tool;
the (+) probe to terminals 60, 59, 58
and 57 of the special tool, respectively.
Check the ignition signal of all cylin-
ders.
Specifications:
The wave shapes of the pulse must be confirmed.
•
As done with step 4, connect the (+)
and (-) oscilloscope probes to termi-
nals 14 ICMB and 43 IE of the special
tool, respectively, and check the ionic
signal .
Specifications:
All wave shapes must be present as shown in the
figure.
KEY:
A . For a cylinder
B . For all cylinders
If no sparks are detected and there is no wave shape of ignition signals, ionic signals, check or replace
the Electronic Control Unit.
If no sparks are detected, the wave shape of the ignition signal is present, and there is no wave shape
of the ionic signal proceed with step 10 .
If sparks are detected and the wave shape of the ignition signal is present, the wave shape of the ionic
signal can be seen. Proceed with step 6 .
6. Checking the cable harness between the Electronic Control Unit and the ignition unit.
•
Set the ignition switch to OFF.
•
Connect the special tool connector of Electronic Control Unit of the Electronic Fuel Injection.
•
Disconnect the ignition unit connector on the Electronic Control Unit side.
Iniection System
PORTER 1.3 16V
IS - 512