APRILIA RSV4 R User Manual

Lambda sensor
Function
In charge of telling the control unit whether the
mixture is lean or rich
Operation / operating principle
The Marelli injection control unit reads and inter-
prets a voltage generated by the difference in oxy-
gen content between the exhaust fumes and the
ambient. It does not require an external supply
source but, in order to work properly, it should
reach a high operating temperature: that is why
there is a heating circuit inside
Level in wiring diagram:
Lambda Probe
Location:
•
on the vehicle: left side of the vehicle
•
connector: on the right of the pinion
cover (4-ways black connector)
Electrical specifications
•
Heater circuit: 7-9Ω at Ambient temp.
Pin out:
1. Sensor signal + (black wire)
2. Sensor signal - (grey wire)
3. Heater ground connection (white cable)
4. Heater power supply (white cable)
DIAGNOSIS INSTRUMENT: PARAMETERS
Lambda probe
•
Example value with key ON: 0 mV
•
Example value with engine on:
100--900 mV
If there is a short circuit at + 5 V or above, the
lambda probe parameter is not equal to the value
read by the control unit; a recovery value is dis-
played instead
Lambda correction
•
Example value with key ON: 1,00 mV
RSV4 R Electrical system
ELE SYS - 171

APRILIA RSV4 R Specifications

General

Displacement	999.6 cc
Torque	115 Nm @ 10, 000 rpm
Transmission	6-speed
Frame	Aluminum dual beam chassis
Seat Height	845 mm
Dry Weight	179 kg
Bore x Stroke	78 x 52.3 mm
Front Tire	120/70 ZR17
Rear Tire	190/55 ZR17
Wheelbase	1420 mm
Power	180 hp @ 12, 500 rpm
Front Suspension	Upside-down fork, 43 mm
Front Brakes	Dual 320 mm discs, radial calipers
Rear Brakes	220 mm disc, Brembo caliper
Fuel System	Fuel injection
Fuel Capacity	18.5 L (4.9 US gal)