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1.5L REVOTORQ ENGINE
206
SENSOR LOCATION
CONNECTOR DETAIL
PINOUT DETAILS
Pin No
Description
1 -2
Middle pressure
3-4
Low and High Pressure
xviii. LAMBDA SENSOR
The oxygen sensor operates on the principle of
galvanic oxygen concentration cell (Nernst cell)
with solid electrolyte (Nernst's principle). The
ceramic sensing element is a conductor of oxygen
ions from a temperature of 350°C. A heater is
integrated on the sensing element. It is placed into
the exhaust manifold. The sensing element
compares the residual oxygen content in the
exhaust gas with the oxygen content in the
reference atmosphere (air surrounding the
sensing element). This gives an output voltage
between 100mV (lean exhaust gas) to 800mV
(rich exhaust gas), depending on whether the
exhaust gas is lean or rich.
SENSOR LOCATION
PRELIMINARY CHECKS
1. Loose/ Damaged Connections between
Sensor and EMS ECU.
2. Check for back out of pins at both Sensor
connector and ECU connector.
3. Check for damage of pins at both sensor
connector and ECU connector.