PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 430 / 892

7. Spark check
•
Remove the fuel pump relay from the
relay block.
•
Remove the ignition coils and the spark
plugs (all cylinders 1, 2, 3 and 4).
•
Fit the spark plug on the ignition coil.
Connect the ignition coil connector to
the coil.
•
Earth the spark plug.
•
Run the engine with the starter motor.
Check if the spark plugs produce
sparks. Replace, if necessary.
8. Fuel injector operation confirmation
•
Fit the spark plugs, ignition coils and
fuel pump relay. Connect the ignition
coil connector.
•
With a sound alarm, check the opera-
tion sound of the single injectors while
the engine is run with the starter motor
or at idle speed.
The sound of operation of all the injectors must be
heard. Otherwise, check the Fuel Injector Circuit.
9. Fuel pressure check
•
Warm up the engine.
•
With the ignition switch set to OFF, re-
move all the ignition coils and the spark
plugs.
•
Temporarily remove the main relay
and the fuel pump relay.
•
Fit a compression test gauge in the spark plug hole.
•
Push the accelerator pedal completely.
•
While the engine is run with the starter motor, measure the compression pressure.
Iniection System
PORTER 1.3 16V
IS - 430