O 2 Feedback System - Suzuki DF 60 Service Manual

O FEEDBACK SYSTEM
2
After extended usage, the engine components may become deteriorated or worn out.
This might make the A/F (air / fuel mixture ratio) incorrect which could affect exhaust emissions. To correct
the A/F, an O sensor must be temporally installed in the exhaust manifold. This sensor is used to measure
2
the concentration of oxygen in the exhaust gas at engine speed of 2000, 3000 and 4000 r/min.
The ECM uses the input data from the O
duration map within the ECM itself.
O sensor:
2
Informs ECM of concentration of oxygen in exhaust gas.
NOTE:
See the "FUEL MIXTURE CHECK (O
feedback operation.
sensor to correct the compensation coefficient of the fuel injection
2
FEEDBACK)" section on the page 2-21 for the procedure of the O
2
ENGINE CONTROL SYSTEM
ECM
3-35
Feedback
2