This made some interesting readings, on Xmas direct from Motec:
The internal heater in the LSU or Uego sensor is powerful enough to allow
accurate measurement when gas temperature is at room temperature. The
Bosch LSU will take ~20seconds to heat up, while the NTK ~30 seconds
before reading.
The maximum continuous operating temperature of the sensors is 850
degrees, they should not be used for a prolonged period at temperatures
higher than this. The sensor can be heated to 930 degrees for a short period
(not exceeding 10 minutes), but the accuracy may be reduced.
Leaded fuel will reduce the sensor lifetime substantially due to lead
contamination of the sensor element. Typically, for high performance engines
the sensor should last at least 500 Hrs in Unleaded fuel and 50 Hrs in Leaded
fuel. Longer lifetimes can be expected for less demanding applications.
At the end of its life the sensor becomes slow to respond and doesn’t read
rich properly. The NTK and LSU are designed to be accurate for 50,000km
operation in a road car, so the above figures are a conservative estimate.
Sensor lifetime will be reduced by contaminants such as lead, silicon, oil, etc.
Thermal cycling will also age the sensor more rapidly, along with exposure
exhaust fumes without any heating control active.
I should have got a new wb instead for Xmas!
happy reading
The internal heater in the LSU or Uego sensor is powerful enough to allow
accurate measurement when gas temperature is at room temperature. The
Bosch LSU will take ~20seconds to heat up, while the NTK ~30 seconds
before reading.
The maximum continuous operating temperature of the sensors is 850
degrees, they should not be used for a prolonged period at temperatures
higher than this. The sensor can be heated to 930 degrees for a short period
(not exceeding 10 minutes), but the accuracy may be reduced.
Leaded fuel will reduce the sensor lifetime substantially due to lead
contamination of the sensor element. Typically, for high performance engines
the sensor should last at least 500 Hrs in Unleaded fuel and 50 Hrs in Leaded
fuel. Longer lifetimes can be expected for less demanding applications.
At the end of its life the sensor becomes slow to respond and doesn’t read
rich properly. The NTK and LSU are designed to be accurate for 50,000km
operation in a road car, so the above figures are a conservative estimate.
Sensor lifetime will be reduced by contaminants such as lead, silicon, oil, etc.
Thermal cycling will also age the sensor more rapidly, along with exposure
exhaust fumes without any heating control active.
I should have got a new wb instead for Xmas!
happy reading
