Service manual

Narrowband O2 sensor (NGO)
DET3 device has the possibility to change the contents the mixture on the basis of readings from the narrowband
O2 sensor (NGO). For the 0.45V voltage sensor reads
stoichiometric mixture (Lambda=1). Thanks to this in the
scope of low engine load, it is possible to correct the
mixture, to reach the stoichiometric composition. The
Lambda probe should be connected to the Tables Switch
(pin 2) input of the device, after having changed its function
in the Tables switch input menu to Use as NBO sensor
input. Next in the EGO Correction configuration can be
made. The following parameters are available:
Target Voltage(V)
The target voltage of the oxygen sensor, which DET3
device will try to achive
Control range(%)
The allowed change of the fuel dose described in percent.
Change step(%)
The step by which the mixture change is made.
Change rate
Parameter describing how often should the algorithm change the value of the correction of the dose. Value 1
means that during each fuel injection, value 2 that every 2 injections, and so on.
Coolant temp.(C)
Temperature, below which the correction of the mixture’s is disabled.
MAP Max (kpa)
Pressure in the intake manifold, above which the fuel dose correction is disabled.
TPS Max (%)
The value of the throttle position, above which the fuel dose correction disabled.
RPM min
Parameter describes the minimal engine revolutions, above which the correction of fuel dose is active.
RPM max
Parameter describes the engine revolutions above which the fuel dose correction is disabled.