MOTO GUZZI 2Q000297 Service Station Manual page 118

Electrical system
•
Target engine revs - (rpm) (Parameter valid at idle, setting depends especially on engine
temperature: the ECU unit will try to keep the engine running at this revs, acting on the
ignition advance)
Diagnostic tool - Electrical errors
Engine revolution sensor P0335 - open circuit
Error cause
•
Faulty wiring harness or engine revolution sensor (pick up)
Troubleshooting
•
An interruption in the sensor circuit has been detected, from PIN 20 to PIN 29 of the control
unit connector.
•
Check the sensor connector and the injection ECU connector: If the values are incorrect
restore them.
•
If the values are correct, check the continuity of the two cables that go from PIN 20 to PIN
29 of the control unit connector; if not OK, restore the wiring harness; if OK, check the
continuity of the sensor; replace it if not OK.
Installation
The gap width should be between 0.7 and 0.9 mm.
Engine revolution sensor P0336 - inconsistent signal
Error cause
•
Possible false contact in the electric circuit detected at PIN 20 and 29 of the engine control
unit connector
Troubleshooting
•
Check the electric circuit is in good conditions and the flywheel teeth cleaning and correct
positioning of the sensor in its own housing; if it is not, replace it. If it is OK, replace the
sensor
Engine temperature sensor
Function
indicates the engine temperature to the control unit
so as to optimise carburetion and idle control
Operation / Operating principle
NTC type sensor (resistance sensor, inversely
variable with temperature)
Level in electrical circuit diagram
Temperature sensors
Position
ELE SYS - 118
V7 III ABS