KMS FUEL/FA23, Manual

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Page 2: ...t up 11 3 2 4 1 5 Throttle pump effect 12 3 2 4 1 6 Interpolations to limit and fuel cut 12 3 2 4 1 7 AUX 1 Second stage on older Fuel system 13 3 2 4 1 8 Correction table only for older Fuel systems 14 3 2 4 1 9 Remarks 14 3 2 4 1 10 Communication port 15 3 2 5 Function key F5 15 3 2 6 Function key F7 17 3 2 7 Function key F10 18 3 3 The communication bar 19 4 Programming 21 4 1 Manual changing 2...

Page 3: ...stem to take over the standard injection at any desired engine speed boost pressure or throttle valve position For this purpose it is mainly applied in compressor or turbo sets The set up of the system software is kept as clear and simple as possible so that even people with little computer experience will be able to use this system Working with the software is simple but if the settings are incor...

Page 4: ... website With the firmware downloader this file can be sent to the ECU It s only possible to use this firmware downloader if you have an KMS ECU with serial nr higher then 300000 Once installed the program is set to work via communication port COM1 If this port is already being used or not available another communication port can be used For the procedure to change the communication port see 3 4 1...

Page 5: ...ion characteristic diagram The spreadsheets are two dimensional diagrams showing engine speed against engine load The engine speed range can be set from 500 rpm to 20 000 rpm The engine load range is sub divided into 16 boxes dividing the range that has been set for the engine load sensor The rows and columns are shown in graphs in the form of bar charts when the left mouse button is clicked on an...

Page 6: ...ch can be activated using the mouse arrow or the relevant function keys on the keyboard An explanation on the different function keys is given in the following sections 3 2 1 Function key F1 This function key gives access to the manual in Acrobat reader Acrobat reader 3 0 or higher is required Acrobat reader 4 0 can be found on the installation CD ROM 3 2 2 Function key F2 This function key enable...

Page 7: ...KMS Fuel FA23 manual Version 3 01 7 3 2 4 1 Options If Options is selected a menu appears which lists several possible settings These settings are described below 3 2 4 1 1 RPM pickup ...

Page 8: ...nect the right wire to the pole of the coil RPM pickup from Hall sensor To get a pickup signal from the hall sensor make sure that you connect the signal wire of the KMS ECU to the right signal pin on the Hall sensor Injection in stroke mode With this option you can set the frequency of injection 1 2 or 4 This means for 1 stroke injection every half revolution of the crankshaft This means for 2 st...

Page 9: ...e spreadsheets can be best utilised There are two ways of calibrating the load sensor 1 Automatic calibration 2 Manual calibration When a throttle valve potentiometer is used it is easy to opt for automatic calibration Select Automatic cal and then keep the throttle valve in rest position pressing OK Then turn the throttle valve to full load and press OK again The minimum and maximum values of the...

Page 10: ...t are linear with the engine load For this reason the system offers the possibility to choose between three load characteristics This enables the upper lower areas to be more sensitive or less sensitive Image Definition Function Application Lineair The load steps are divided in proportion to the signal MAP sensor Logarithmic At lower loads the load signal is divided over a smaller number of steps ...

Page 11: ...d to As long as the engine speed is lower than 500 rpm the quantity of injected fuel shown in the first row applies Proper firing of the engine often requires more fuel depending on coolant temperature than the quantity needed when the engine is already running at the same engine speed This extra enrichment can be entered in the table for the duration of a number of crankshaft rotations There are ...

Page 12: ...el to be injected can be set for the three engine speed ranges indicated The duration of enrichment can be set by entering the number of crankshaft rotations The acceleration enrichment will automatically decrease at lower throttle valve opening speeds Acceleration enrichment type 1 is always linked to Engine load 1 Type 2 With some engines it is difficult to get optimum result with acceleration e...

Page 13: ...gnored A hysteresis can be set for the AUX output This means that the switching ON value can be set higher than the switching OFF value The advantage of this is that the output does not need to be switched on and off unnecessarily An example is a cooling fan that activates at 90 degrees and deactivates at 85 degrees You can name this AUX output freely with a maximum of 2 x 8 characters Second stag...

Page 14: ...is used the range can be set manually This menu also offers the possibility to make a correction to the air temperature and or the battery voltage The air temperature correction is a fixed table and cannot be changed with the PC software This air temperature correction can only be made if an NTC temperature sensor is used For the correct type of sensor see 6 5 sensor connections The battery voltag...

Page 15: ...left startÆcontrol panelÆsystemÆdevice manager you can see that the USB to serial connection has set to COM 7 When the desktop laptop has no serial port a usb to serial converter is necessary make sure that USB serial convertor will be dedicated to a COM connection between 1 and 8 If this number exceeds 8 sometimes the convertor will not function properly At the advanced settings of the COM port y...

Page 16: ...his table can also be used to offer protection when the inlet temperature is too high by providing extra enrichment Battery voltage correction The battery voltage correction is used to compensate for the opening loss time of an injector The opening loss time is dependent on the battery voltage and may vary from 1 8 milliseconds at 8 volts to 0 4 milliseconds at 16 volts When battery voltage correc...

Page 17: ...gram will change into yellow This is to indicate that the changes have not been saved yet Save the changes by pressing the F7 function key When the box is clicked the changes will be saved If saving is successful the box will automatically change to Once again if UNLOCKED is not clicked after the program has been changed the changes in the system will be lost when the power supply to the system is...

Page 18: ...g the file on the PC to the system and loading the file in the system to the PC There will still be the possibility of breaking the communication again Make sure that the battery of the vehicle supplies more then 10 Volts If the battery doesn t exceed 10 Volts the changes you made to the ECU will not be saved Tip On vehicles with an ignition lock switched in such a way that the power supply to the...

Page 19: ...y F10 can be used to activate the communication There are six check lights in the communication bar which indicate the status of the relevant outputs The following readings will be shown for the FA23 system for older Fuel system look at the next page Boost pressure will change into air pressure depending on the hardware configuration These readings can be used to check whether the right sensors ar...

Page 20: ...KMS Fuel FA23 manual Version 3 01 20 For the older Fuel systems the dashboard shows other values See the picture below ...

Page 21: ...ng all the values related to that engine load value Access to the bar charts can also be obtained by pressing the ALT C keys or the ALT R keys simultaneously The thin yellow line in the graphs of the injection diagram indicates the maximum duration of injection for the engine speed concerned It is also possible to modify the diagram values in the bar charts by using the arrow keys or the arrow key...

Page 22: ...this communication for you desktop laptop and make a connection with the KMS Fuel software Warning Make sure that you know what kind of injectors you have Because of the fact that when you connect low impendance injectors eventually the ECU will malfunction because of overheating When using low impendance injectors a high current will run threw the ECU which will break down some components Injecto...

Page 23: ...tle pump effect menu Check whether the engine load indicated on the dashboard changes evenly when the accelerator is slowly depressed See paragraph 3 2 4 1 3 Temperature reading gives incorrect value Temperature reading gives in the communication bar Wrong type of NTC temperature sensor Sensor not connected or short circuit in sensor wiring Fit the correct temperature sensor Check the wiring Auto ...

Page 24: ... to sensors can have a maximum of 100mA Inputs Inputs are protected up to 50 volts Input for coolant and air temperature is suitable for an NTC sensor as standard 2 2 kOhm at 25 degree celsius Input for engine load is suitable for potentiometers air mass meters and map sensors with an output between 0 and 5 volts Outputs Injector output can deliver at most 7 amps at 12 volts for instance 6 injecto...

Page 25: ...5 grey black Load signal MAP MAP or air pressure sensor 6 black ECU ground 7 red ECU 12V supply Use 5 10 Amp Fuse on ignition key 8 green communication 9 10 11 orange black Coil hall signal coil or hall sensor 12 13 grey Load signal TPS 14 black Sensor ground TPS MAP Water T Air T 15 red communication 16 17 18 19 20 yellow Load sensor 5V supply 21 grey blue Water T 22 red blue Air T 23 black commu...

Page 26: ...KMS Fuel FA23 manual Version 3 01 26 9 Wiring examples KMS FA23 ...

Page 27: ...KMS Fuel FA23 manual Version 3 01 27 ...

Page 28: ...KMS Fuel FA23 manual Version 3 01 28 ...

Page 29: ...KMS Fuel FA23 manual Version 3 01 29 10 Wiring example older KMS Fuel ...