Gilera Runner Purejet 2007, Workshop Manual, Page: 151 / 257

The core dwelling time is optimised in function of the power required to the HV coil. Of course, longer
dwelling times are used during start up.
The ECU self-diagnosis also checks the coil power supply circuit, detecting interruptions or short cir-
cuits. The check is only carried out in the presence of rpm - phase signals (engine running). Any fault
is reported to the driver by the solid turning on of the injection indicator. In addition, for safety reasons,
the injector power supply is interrupted. To reset the function, switch to "ON" "OFF" "ON". The fault is
registered, with the possibility of switching to "emergency"
CIRCUIT DIAGNOSIS
1- Connect the scooter diagnostic tester. Select the active diagnostic function.
GO TO point 2
Specific tooling
020460Y Scooter diagnosis and tester
2. Start the diagnostic of H.V. coil. Check if 5 ignitions are controlled. These can be detected by the
noise produced by the magnetic activity and from the spark on the plug. If this check is not possible,
use an external spark plug and check the 5 sparks directly.
YES point 3 NO point 4 NO point 5
3. There are 5 sparks. The ignition system is working. For greater certainty, continue with the auto-
diagnostic check in order to highlight stored errors.
4. No sparks present, even if the result is: "test successful". Continue with circuit checks. If there are
no faults, replace the ECU
GO TO point 2
5. No sparks present. The result is: «test failed» Repeat the diagnostic and, if necessary, replace the
ECU.
GO TO point 2
CHECKING THE auto-diagnostic MESSAGE
1- Connect the scooter diagnostic tester. Select the «errors» function on the menu. Check if there are
any errors on the H.V. coil.
P0350 H.V. COIL
YES point 3 YES point 4 NO point 2
Specific tooling
020460Y Scooter diagnosis and tester
2. No errors. To be more sure, check:
- Spark plug
· H.V. coil secondary
- Shielded cap
- Ignition timing
3. Error on the H.V. coil in current status. Continue with circuit checks.
Runner Purejet
pure jet injection
INJ PJ - 151