Service manual

Work mode sequence of DET3 Fuel Implant
Current working mode of DET3 Fuel Implant is displayed on the Windows client status bar. The device
can be running in one of the following modes:
Inactive
In this mode the device awaits signals from the crank/cam sensor. The time of opening the injectors is
0ms. Readings from all sensors connected with the device are possible.
Cranking
The device moves from Inactive mode to the Cranking mode, if engine speed exceed 50 revolution
per minute. In Cranking mode the fuel dose is defined by the Cranking time table table in the
temperature function (Cranking menu). If, in TPS configuration the Enable TPS Antiflood option is
enabled and the throttle is open in more than 90% then the time of opening the injectors is 0ms.
If the engine rotation exceeds the value of Cranking RPM threshold , the device goes in Afterstart mode. If the
RPM go below 50 the device returns to Inactive mode.
Afterstart
During Afterstart mode the fuel dose is calculated based on a volumetric efficiency table and all
corrections and enrichments. Additionally Afterstart enrichment is active. It is active for the whole time
defined by the number of engine’s work cycles ASE duration (in engine cycles), after this time engine
goes into Running mode. In Afterstart mode correction using the narrow band oxygen sensor is
disabled.
Running
In this mode the engine is working according to the Speed Density or Alpha-N algorithm.
Inactive Cranking
Afterstart
Running
RPM > 50
RPM > RPM Threshold
Engine cycles > ASE cycles