APRILIA TUONO V4 R 2010 Service Station Manual page 178

Electrical system
•
on the vehicle: inside the filter box
•
connector: on the throttle body, in lower position, near the throttle motors
Pin out:
1. potentiometer signal 1
2. supply voltage + 5V
3. throttle valve control (+)
4. potentiometer signal 2
5. throttle valve control (+)
6. ground connection
DIAGNOSIS INSTRUMENT: PARAMETERS
Front cylinder throttle correction
•
Example value with key ON: 0.0°
•
Example value with engine on: 0.4°
The system, reading the intake pressure, tries to balance the intake pressures between the cylinders
of the rear bank (1-3) and of the front bank (2-4) working on the throttle position: an acceptable value
should be between -0.5 and + 0.5
Rear cylinder throttle correction
•
Example value with key ON: 0.0°
•
Example value with engine on: -0.2°
The system, reading the intake pressure, tries to balance the intake pressures between the cylinders
of the rear bank (1-3) and of the front bank (2-4) working on the throttle position: an acceptable value
should be between -0.5 and + 0.5
Front throttle Potentiometer 1 (degrees)
•
Example value with key ON: 7.8°
•
Example value with engine on: 1.4°
With key set to ON, the throttle is kept in position by the springs (around 5 -7°). After the engine starts
up at idle, the throttle is kept close to the mechanical minimum (above or equal to 0.5°). When the gear
is not engaged, at approx. 6000 rpm, throttles open very little because the requested torque is too low
(around 5-7°)
Rear throttle Potentiometer 1 (degrees)
•
Example value with key ON: 8°
•
Example value with engine on: 1.5°
With key set to ON, the throttle is kept in position by the springs (around 5 -7°). After the engine starts
up at idle, the throttle is kept close to the mechanical minimum (above or equal to 0.5°). When the gear
is not engaged, at approx. 6000 rpm, throttles open very little because the requested torque is too low
(around 5-7°)
Front throttle Potentiometer 1 (voltage)
ELE SYS - 178
TUONO V4 R