BMW N55 - Oil Pressure Sensor; Oxygen Sensors

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N55 Engine
Oil Pressure Sensor
The new oil pressure sensor can now determine
the absolute pressure.
The sensor delivers a more accurate pressure
reading which is required for the electronic volume
control oil pump function.
The sensor design is identical to that of the (high)
fuel pressure sensor. The DME supplies a voltage
of 5 Volt to the oil pressure sensor.
Oxygen Sensors
A new connector is used for the oxygen sensors.
The new connector system provides greatly
improved contacting properties and eliminates
”background noise”.
Index Explanation
1
Oxygen sensor upstream of catalytic converter
2
Connection at exhaust turbocharger
3
Ceramic monolith 1
4
Catalytic converter
5
Ceramic monolith 2
6
Oxygen sensor after catalytic converter
N55, oil pressure sensor
N55 engine, catalytic converter