PIAGGIO PORTER 1.3 16V 2008, Руководство по обслуживанию

Страница: 443 / 892

Connector X46 on the sensor side - connector on
the VCPM electronic control unit side.
Repair or replace the cable harness or connector,
if necessary, otherwise replace the MAP sensor.
Model EURO 4
Check cable harnesses downstream and up-
stream the ECU DRACO and on the ECU DRACO
itself in the following order
•
Test the cable harness in the vehicle
connecting the special tool to the DRA-
CO connectors on the device side.
•
Test the cable harness in the EFI ECU
control unit connecting the special tool
to the DRACO connectors on the con-
trol unit side.
If there are no short circuits or open circuits on both
cable harnesses, the malfunction could be caused
by the sensor or the DRACO.
To check for correct operation of the DRACO pro-
ceed as follows:
a) Disconnect the cable harness of the DRACO to
the EFI ECU control unit
b ) Connect the special tool between the EFI ECU
connectors and cable harness connectors to the
vehicle devices so as to bypass the DRACO.
c) carry out the check as in Step 3 . If failures are
detected, the problem is in the DRACO control unit
which must be replaced, otherwise replace the
sensor.
APPLY FUEL ONTO THE MAP SENSOR O-RING, THEN IN-
SERT IT BEING EXTREMELY CAREFUL.
PORTER 1.3 16V
Iniection System
IS - 443