Lambda Sensor; Roll Over Sensor - Royal Enfield Bullet Classic EFI Service Manual

FUNCTIONS OF COMPONENTS FUNCTIONS OF COMPONENTS
FUNCTIONS OF COMPONENTS FUNCTIONS OF COMPONENTS FUNCTIONS OF COMPONENTS
LAMBDA (HEGO O
The Lambda Sensor detects the presence of oxygen in the exhaust and produces a variable voltage
according to the amount of oxygen detected. The sensor provides feedback to the ECU which in turn
will meter the air/fuel ratio in order to achieve a near stoichiometric air/fuel ratio of 14.7 : 1 during
closed loop engine operation. (The ideal mixture is the amount of fuel needed to make an engine
perform as commanded by the ECU). The Lambda sensor is located on the LH side of the exhaust
pipe near the cylinder head.
The Lambda sensor is temperature sensitive and hence takes approximately 90 seconds to get
activated whenever the engine is started. Till the time the Lambda sensor is activated the ECU gives
a preset air fuel mixture.

ROLL OVER SENSOR

The Roll over sensor is also known as a bank angle sensor. If the motorcycle is banking below 60
from the road surface OR in the event of an imminent falling over in a mishap, this sensor signals the
ECU which in turn will cut off the fuel supply to the injector and the ignition, thus stalling the engine to
prevent further damage that may be caused if the engine is still running with the throttle stuck wide
open and the gears are engaged.
The Rollover Sensor is located under the seat on the vehicle-mounting strip of the frame (beside
ECU).
) SENSOR
2
Assembled on the exhaust pipe
Assembled under the seat
Specification:
Operating Voltage : Upto16 V (Maximum).
Operating
temperature : 600º C to 950º C. (TIP)
Tightening
Torque : 24.5 ± 4.9 N-m (2.5 ± 0.5 Kg f-m)
Specification:
Operating Voltage : 12V .
Operating Angle : 60° + 10°.
Operating Temperature : –20°C to +85°C.
°
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