PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 442 / 892

•
Remove the MAP sensor from the
throttle body with the cable harness
connected to the control unit.
•
Apply a negative pressure to the MAP
sensor, with the MityVac device.
•
Check that voltage between terminals 15 and 47 matches the voltage specified according
to the following conditions:
Vacuum applied Value displayed on the voltmeter
0 kPa 3.3 - 4.0 V
27 kPa (200 mm Hg) 2.6 - 3.1 V
67 kPa (500 mm Hg) 1.1 - 1.4 V
If the value measured matches the values indica-
ted in the table, check for possible intermittent
malfunctions caused by problems in the vacuum
duct, cable harness or connector, otherwise pro-
ceed with step 4 .
4.Checking the cable harness between the
MAP sensor and the electronic control unit.
Model EURO 3
•
Set the ignition switch to OFF.
•
Disconnect the cable harness from the
MAP sensor. Fit the MAP sensor on the
throttle body.
•
Disconnect the special tool connectors
on the electronic control unit side.
•
Connector X44 on the sensor side -
connector on the E2PM electronic con-
trol unit side.
Connector X45 on the sensor side - connector on
the PIM electronic control unit side.
Iniection System
PORTER 1.3 16V
IS - 442