VESPA GTS Super 300 ie 2008 Service Station Manual page 200

Injection
5. Fuse No. 5 of 7.5A
6. Injection load relay
7. Fuel pump
8. H.V. coil.
9. Fuel injector
10.Electric fan solenoid
11.Coolant electric pump
Check the resistance at the injector ends: 14.5 ± 5% Ohm
Check that the injection load 15A fuse No. 2 works
properly.
Check that the 7.5A fuse No. 5 for live control unit
power works properly.
Check the efficiency of the injection load solenoid.
Check the resistance of the energising coil be-
tween pins 86 and 85: 40 to 80 Ohm
Apply a voltage of 12V to pins 86 and 85; make
sure that there is continuity between pins 30 and
87 of the relay.
Check the power supply line of the injection load
solenoid energising coil: after switching to "ON",
make sure there is battery voltage, for two sec-
onds, between the Red-White cable and Black-
Purple cable of the solenoid control base. If there
is not, check the continuity of the Red-White cable
between the fuse box under the saddle hinge and
the remote control base and of the Black-Purple
cable between pin 22 of the control unit and the
remote control base.
N.B.
CONTINUITY TESTS MUST BE CARRIED OUT WITH THE
COMPONENTS DISCONNECTED. (RELAYS, CONTROL
UNIT, FUSES ETC.).
INJEC - 200
Vespa GTS Super 300 ie (2008)