Table of Contents
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Connection and Programming Manual for
STAG-200, STAG-4,
STAG-300 Plus, STAG-300 Premium
(also available in the diagnostic software and at www.ac.com.pl)
Manufacturer:
AC Spółka Akcyjna.
15‐182 Białystok, ul. 27 Lipca 64, Poland
tel. +48 85 7438148, fax +48 85 653 8649
www.ac.com.pl, e‐mail: autogaz@ac.com.pl
controller
ver. 2.3 2010‐01‐20
Strona 1 z 34
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Table of Contents
Summary of Contents for autogaz AC STAG-200
- Page 1 Connection and Programming Manual for STAG-200, STAG-4, STAG-300 Plus, STAG-300 Premium controller (also available in the diagnostic software and at www.ac.com.pl) ver. 2.3 2010‐01‐20 Manufacturer: AC Spółka Akcyjna. ...
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Page 2: Table Of Contents
Table of contents 1. Set‐up ............................... 3 1.1. STAG‐200 Connection Diagram .................. 3 1.2. STAG‐4 Connection Diagram .................... 4 1.3. STAG‐300 Plus Connection Diagram ................. 5 1.4. STAG‐300 Premium Connection Diagram ................. 6 1.5. Wiring Diagram for semi‐sequential systems. .............. 7 1.6. Connection Diagram for full‐group systems. .............. 7 1.7. STAG‐200, STAG‐4, STAG‐300 Plus, STAG‐300 Premium ECU Installation Method. .. 7 1.8. Selection of Pressure Regulator.................. 7 1.9. Selection of injector nozzles ..................... 8 2. Ac Gas Synchro diagnostic software ‐ description................ ... -
Page 3: Set-Up
1. Set‐up 1.1. STAG‐200 Connection Diagram INTERFACE Bluetooth BROWN INERFACE DIAGNOSTIC IGNITION RS 232 or USB CONNECTORS COIL VIOLET FUSE IGNITION LAMBDA SWITCH PI 1... PI 6 LI 1...LI 6 SENSOR - PETROL INJECTORS - LPG or CNG INJECTORS PI 1 LI 1 BLUE-RED YELLOW... -
Page 4: Stag-4 Connection Diagram
1.2. STAG‐4 Connection Diagram 67R-01 4903 110R-00 4904 www.ac.com.pl U=12V INTERFACE Bluetooth Chose the proper type DIAGNOSTIC CONNECTORS of sensor in software. INERFACE IGNITION RS 232 or USB COIL VIOLET VIOLET - GREY VIOLET - GREY VIOLET - GREY VIOLET VIOLET IGNITION LAMBDA LAMBDA UEGO... -
Page 5: Stag-300 Plus Connection Diagram
1.3. STAG‐300 Plus Connection Diagram INTERFACE Bluetooth BROWN IGNITION INERFACE DIAGNOSTIC COIL RS 232 or USB CONNECTORS Chose the proper type of sensor in software. VIOLET VIOLET - GREY VIOLET - GREY IGNITION VIOLET - GREY VIOLET VIOLET SWITCH PI 1... PI 8 LI 1..LI 8 - LPG or CNG INJECTORS - PETROL INJECTORS... -
Page 6: Stag-300 Premium Connection Diagram
1.4. STAG‐300 Premium Connection Diagram OBD connector YELLOW INTERFACE Bluetooth BROWN INERFACE DIAGNOSTIC RS 232 or USB CONNECTORS IGNITION Chose the proper type COIL of sensor in software. VIOLET VIOLET - GREY VIOLET - GREY VIOLET - GREY IGNITION VIOLET VIOLET PI 1... PI 8 LI 1..LI 8 SWITCH - PETROL INJECTORS... -
Page 7: Wiring Diagram For Semi-Sequential Systems
1.5. Wiring Diagram for semi‐sequential systems. GI 1...GI 5 PI 1... PI 6 - PETROL INJECTORS - GAS INJECTORS PI 1 GI 1 YELLOW BLUE_RED (+12V) YELLOW-GREY YELLOW-BLACK PI 2 GI 2 BLUE_RED GREEN (+12V) GREEN-GREY GREEN-BLACK PI 3 GI 3 BLUE_RED (+12V) RED-GREY RED-BLACK PI 4 GI 4... -
Page 8: Selection Of Injector Nozzles
delivery is high (i.e. when the throttle is fully open). When the LPG pressure drops below the minimum value programmed in the controller, the system will switch to petrol. 1.9. Selection of injector nozzles The injector nozzles selection should also be based on the engine power. The selection of injector nozzles should ensure that at high engine loads and high rpm, the multiplier for a given injection time should be close to 1. For the majority of engines, the injection times equal roughly 15 [ms]. The table below presents the nozzles’ diameters depending on the engine power per 1 cylinder. To select the right diameter of nozzles, the engine power needs to be divided by the number of its cylinders. ... -
Page 9: Ac Gas Synchro Version
Fig. 7 Parameters window. If you get the “Controller Error” message and “No connection” appears in the lower left corner of the screen, select a different COM port from the Port menu at the top of the screen. 2.2. Ac Gas Synchro version When the diagnostic software is open, the top title bar shows the version of the software; Fig. 7 shows the software version 5.0.0.17. 2.3. Main menu The main menu consists of the following options: Port – changing the communication port, connecting and disconnecting the controller Window – selecting the software windows Language – selecting the required software language version Controller update – updating the controller firmware Documentation – opening a folder with available documentation Help – about the software Strona 9 z 34 ... -
Page 10: Controller Parameters
2.4. Controller Parameters The controller firmware version is shown at the bottom of the screen (Fig. ); „ver.” is followed by the 7 firmware version, where: STAG‐300‐4 Premium – controller model 5.0 – controller firmware version number 7.0.0 – controller version number 2009‐04‐06 08:52:42 – date and time of the firmware compilation Clicking the button in the upper right corner will bring up the Controller Info window. A detailed description of the Controller Info window is presented later in this manual. The Parameters window lists a number of parameters which need to be set individually for each vehicle. The Car parameters group contains: Number of cylinders – number of engine cylinders. Num. of cyl. for coil – the number of cylinders for each ignition coil RPM signal – RPM signal source ... - Page 11 ‐ UEGO ‐> full range – wide‐band UEGO lambda (current). The controller shows on an oscilloscope values in Volts. This makes it possible to watch the entire working range of the UEGO probe, i.e. from lean to rich mixtures. Only 1 broad‐band probe can be connected at any given time. Do not select “UEGO probe” for a voltage probe as this may damage the probe. Refer to the Connection Diagram!!! Type of Injection – type of injection used in the car, ‐ Standard – standard indirect injection, petrol injectors with no current limit. ‐ Renix – indirect injection system, petrol injectors with “Renix” current limit Type of petrol Inj. – type of petrol injectors control − Sequential: each petrol injector is controlled from a separate channel in the petrol controller. − Semi‐sequential: petrol injectors are controlled in pairs, i.e. 2 injectors are controlled from a single channel in the petrol controller. − FullGroup: petrol injectors are controlled from a single channel in the petrol controller. Mazda leaning – in some types of Mazda, the petrol controller can (in some conditions) alter from sequential into semi‐sequential controlling. It can be easily noticed by observing the LPG/CNG injection time indicator on the 2D map. When the petrol controller alters from the sequential into semi‐sequential controlling (at the same load), the petrol injection time is reduced by approximately 50[%]. The vertical axis indicator (for constant load) changes its injection time value position e.g. from 8 [ms] to 4 [ms]. In the case of such a controlling type in the LPG mode, “jerking” can occur, resulting from the fact that the mixture is too rich for the semi‐sequential mode. In order to eliminate the above‐mentioned problems, “Mazda leading ” function should be used. The weakening coefficient should be properly set. According to the research, its value should be approximately 17. However, the value can be different, depending on the engine. The LPG Controller Settings window lists the following groups of parameters: Switchover to gas – parameters related to switching from petrol to LPG. ...
- Page 12 Switchover to petrol ‐ parameters related to switching from LPG to petrol. Min. gas temp. – min. LPG temperature; when lower, the controller will switch over to petrol. Min. gas RPM – min rpm; when lower, the controller will switch over to petrol. Max. gas RPM – engine rpm; when higher, the controller will switch to petrol Pressure error time – amount of time with the LPG pressure lower than minimal before the controller switches to petrol and reports: “LPG pressure too low”. Switch‐off at the first error – with this option selected, the controller will switch to petrol when the LPG pressure drop is detected. When unselected, the controller will switch some cylinders to petrol when the LPG pressure is detected to lower LPG usage. “Max. engine load on gas” – the maximum load value in the LPG mode, above which the controller switches to petrol. This option is very useful for the engines in the case of which petrol injectors can be fully opened. In such a situation, the LPG controller can only open LPG injectors permanently as well. However, corrections, e.g. resulting from changes in the LPG pressure, will be no longer possible. The moment when petrol injectors are fully open corresponds to the load value of 100 [%]. If petrol injectors become fully open, the “Max. LPG load” parameter should be set to approximately 95 [%]. This will result in the controller switching to petrol before full opening of LPG injectors. Calibration parameters – parameters related to controller calibration. Gas temp. at Calib. – LPG temperature at which the controller was calibrated. Pressure ‐ Operational – LPG pressure at which the controller was calibrated. This setting can be altered manually. However, each change of the operational LPG pressure requires multiplier map calibration!!! Minimum – when the pressure is lower than minimum, the controller will switch to petrol if the duration of min. pressure exceeds the Pressure Error Time. Remaining parameters in the LPG Controller Settings group: Fuel Type – type of fuel in the LPG system Injector Type – type of the LPG injector. Changing the injector type requires re‐ auto‐calibration or multiplier map calibration!!! Gas Injectors Settings – calibration of particular LGP injectors. Gas level indicator– LED thresholds setting. This button is used to set the low LPG ...
- Page 13 Clicking the Gas Injectors Settings button will open up the following window in which the LPG injectors can be calibrated: Use this window to calibrate (in %) the LPG injectors. These settings enable a correction of the fuel mixture for each cylinder. This is used e.g. to correct the injection time variations present in a “V” type engine cylinders. To calibrate the injectors, use the following procedure: Upon auto‐calibration, check the petrol injection times for each cylinder when using petrol. Turn the LPG injectors on, one at a time, and observe if there are any differences in the injection times after switching from petrol to LPG. Adjust the % settings (only when necessary!) for each injector so that switching to LPG one injector at a time will not result in changing the petrol injection times. WARNING!!! Use this option as a last resort, i.e. when sure that the installation was performed properly, all mechanical issues have been eliminated and injection times variations ...
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Page 14: Controller Info
2.5. Controller Info To bring up the About gas ECU window, click the button in the upper right corner of the screen or select “Gas controller info” in the Help menu. Fig. 8 Gas controller info window. The Gas controller info window (Fig. 8) shows the following parameters: ECU working time: Petrol – total working time of the controller using petrol listed in the following format: H – hours, M – minutes, S – seconds. Since last connection – working time of the controller using petrol since its last connection with a PC. Gas ‐ total working time of the controller using LPG Since last connection – working time of the controller using LPG since its last connection with a PC. Inspection – Service Schedule. When the controller reaches the working time using LPG set in this field, every time the ignition key is switched‐off the controller will produce an acoustic signal reminding of the inspection. Clearing the Inspection Schedule is explained below. To set the Service Schedule, click the “Set” button in the About gas ECU window. The following window will pop up (Fig. 9): ... -
Page 15: Obd Adaptation (Stag-300 Premium Only)
The next service visit time is calculated on the basis of mileage. The default setting is 1 h = 50 km, yet it is configurable. The above window shows the next service visit set to 1000 km, which in this case equals 20 hours of work. To clear the service schedule, select “Disabled”, in which case the controller will not monitor the service schedule. Below the working times, the Controller Info lists the following types of registered events: First connection to PC – date of the first controller‐PC connection. First settings modification – first modification of the controller settings. If these fields do not show dates but instead the „???” symbols, it means an error occurred in the Controller Info. Time information has been lost and the controller will start counting the times from the beginning. Mod. date 1 ÷ Mod. date 5 – a list of controller settings modifications. From the most recent ones till the oldest. Unknown settings mod. – This happens when the controller’s settings modification is performed with a date earlier than a previously performed modification. Each event is also accompanied by a “code” linked to the PC on which the modification was made. Thus knowing the modification date as well as the PC code, it is easy to determine whether any modifications have been performed by anyone else. ... - Page 16 Fig. 10 OBD window. OBD window displays the following data: OBD II/EOBD – Data available from fuel ECU via the OBD interface Number of trouble codes – Number of recorded OBD troubles STFT B1 – Short term fuel trim Bank 1 (ECU fuel) LTFT B1 – Long term fuel trim Bank 1 (ECU fuel) Resultant trim B1 – Resultant trim Bank 1 (ECU fuel) STFT B2 – Short term fuel trim Bank 2 (ECU fuel) LTFT B2 – Long term fuel trim Bank 2 (ECU fuel) Resultant trim B2 – Resultant trim Bank 2 (ECU fuel) Engine RPM – Engine rpm value Additionally, after pressing button ‘Show’, a window containing information on stored trouble codes (ECU fuel) and pending trouble codes (ECU fuel) will be displayed. Strona 16 z 34 ...
- Page 17 Fig. 11 Window "ECU fuel trouble codes read from OBD STAG‐300 Premium – Data related to OBD adaptation Adaptation on – Switching on/off of OBD adaptation. In the case of engines with two Banks control systems (e.g. „V” type or „boxer” engines), one has to define in which bank a particular gas injector is located, see chapter 2.7. Matching gas injectors with the relevant Bank Matching gas injectors with relevant Bank (STAG‐ 300 Premium only). ‘Adaptation on’ threshold – The value of resultant trim (ECU fuel) above which OBD (STAG) adaptation starts operation. Default value is 5 [%] and should be correct in most cars, however in some vehicles (low rotation speed), the resultant trim (ECU fuel) considerably differs from 0 and in such cases, the „Adaptation on’ threshold should be increased to the value of the resultant trim at low rotation speed. STFT B1 – Short term fuel trim Bank 1(STAG‐300 Premium) LTFT B1 – Long term fuel trim Bank 1(STAG‐300 Premium) STFT B2 – Short term fuel trim Bank 2(STAG‐300 Premium) LTFT B2 – Long term fuel trim Bank 2(STAG‐300 Premium) A window showing connection status with OBD is presented below. Grey icon and text ‘No connection with OBD’ means that at the moment, the connection with OBD is not possible (no ignition, no OBD adapter) Yellow icon and text ‘Connecting to OBD’ means that the controller is connecting with OBD Flashing red icon and text ‘Connected to OBD’ means that the controller has been connected to OBD. Strona 17 z 34 ...
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Page 18: Matching Gas Injectors With Relevant Bank (Stag-300 Premium Only)
In order to switch on adaptation, the process of auto‐calibration must be performed first, see chapter 3.1. Auto‐calibration. After completing auto‐calibration, the programming process must be implemented, see chapter 3. STAG‐200, STAG‐4, STAG‐300 Plus, STAG‐300 Premium controller programming WARNING!!! OBD Adaptation is recommended for cars made after 2002. 2.7. Matching gas injectors with relevant Bank (STAG‐300 Premium only). In the case of „V” or „boxer” engines, the controller may have 2 banks Bank 1 and Bank 2 (The trim value STFT B2 and LTFT B2 are different from zero). In this case, an individual gas injector must be set to the relevant Bank. In order to do that, Press ‘Gas injectors settings’ button in the „Parameters” bookmark. The window “Gas injectors settings” will be displayed. Fig. 12 Gas injectors settings window (STAG‐300 Premium) Start the engine, wait for the controller to establish connection with OBD. The engine should operate at low rotation speed with adaptation off. Set correction value for all gas injectors to zero. Remember the correction value STFT and LTFT for Bank 1 and Bank 2. Next, perform the following procedure, starting from gas injector 1: ... -
Page 19: Signals, Injectors, Switchboard
In the case of controllers with 2 „Banks”, improper realisation of the above described procedure will result in incorrect auto‐adaptation function, which may lead to engine damage. The above described procedure need not be implemented in the engines with controller and 1 „Bank”, as all gas injectors are by default matched with 1 Bank. 2.8. Signals, injectors, switchboard On the right side of the window (Fig. ) there are the “Signals” and “Injectors” windows. The “Signals” 7 window shows the following signals measured by the controller: ... - Page 20 Below the signals (Fig. )) there is a field with active LPG/CNG injectors. This is used to turn off 7 selected LPG injectors. E.g. in a 4‐cylinder engine, normally 4 LPG injectors are active (green). To turn off a selected injector, click on it and the corresponding petrol injector will be turned on. This is useful in diagnosing a mechanical damage on an injector. When the power is switched off with the ignition key, all LPG injectors are turned on. There is a LED switchboard under the Signals and Injectors windows. Fig. 13 LED switchboard There is a button on the LED switchboard for changing the fuel type. The LED next to the switch signals the controller status: off – petrol on – LPG/CNG blinking – auto mode ...
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Page 21: Auto-Calibration
2.9. Auto‐calibration The auto‐calibration window is used to calibrate the engine at idle run. Start the calibration after the engine is turned on and the lambda probe begins to work. During the auto‐calibration the engine should work at idle run. Switch off air‐conditioning and lights and do not turn the steering wheel. During the calibration, the controller will automatically switch from petrol to LPG. The controller will be automatically switching on selected LPG cylinders. Once the auto‐calibration is complete, the controller displays a message informing the auto‐calibration has finished successfully. The following ... -
Page 22: Errors
Increase the number of displayed points (only for loaded graphs) When the controller works with LPG, a continuous line appears at the top of the oscilloscope; its colour corresponding to the LPG ignition time. 2.11. Errors The Error window shows the following field: Continuous acoustic signal for errors – if selected, acoustic signals will inform of an error until manually turned off by the user. If unselected, the acoustic signals will remain on only for a set amount of time. The Actual Errors window shows current errors recorded by the controller and the Saved Errors window shows errors recorded during the controller’s operation. ... -
Page 23: Multiplier Map
2.12. 2D Multiplier Map The Map window shows the LPG controller 2D maps. Fig. 16 2D Controller maps Fig. 16 shows 3 maps: Multiplier map ‐ orange Petrol injection time map (with petrol) ‐blue Petrol injection time map (with LPG) ‐ green The multiplier map is orange. The left axis of the co‐ordinate system (Multiplier) and the lower axis (Injection time [ms]) relate to the multiplier map. The multiplier map is used to set the multiplier for a given petrol injection time. The yellow points visible at the map are used to set the multiplier. Upon auto‐calibration, 2 yellow points appear on the left‐most and right‐most positions with 4 additional points in between. To move a given point, select it by clicking on it. The value of a selected point is ... -
Page 24: Multiplier Calibration Map (For Stag-300 Plus, Stag-300 Premium Controller Only)
Apart from the multiplier map, there are two other maps in the window. The blue map represents the petrol injection times (with petrol). The right axis Collector pressure [Kpa] and the lower axis Injection Time [ms] relate to this map. The map consists of blue points. After collecting the data, the controller turns these points into a continuous line. The same applies to the so‐called LPG map, i.e. the map of petrol injection times (with LPG) which is green. After the controller collects both maps, i.e. the petrol and LPG maps, the Deflection tab becomes active where a red line shows the difference between petrol and LPG. The map window in Fig. 16 shows a blue square marker; its position changes vertically depending on the collector pressure and horizontally depending on the petrol injection times. It is very useful during map collection as it shows the load and injection times of the engine. The “Erase” button is used to delete the petrol and LPG maps. The “Lock” button situated next to it is used to block the petrol map once it is collected by the controller, i.e. the controller will not modify the petrol map once it is collected (drawn with a continuous line). 2.13. 3D multiplier calibration map (for STAG‐300 Plus, STAG‐300 Premium controller only) After clicking on the “3D view” button, a 3D multiplier calibration map will open in the “Map” window. ... - Page 25 A yellow (square) marker seen in the diagram shows where on the plane the engine currently is. The marker position depends on the current rpm value and of the petrol injection time. The following working modes are available when using the 3D map: Multiplier change This mode is used to change the multiplier characteristics (plane) by following steps analogous to those in the case of the 2D map. Editing in this mode is analogous to the same function in the 2D map. The mode is activated by means of clicking with the left mouse button beyond the plane marked out by the multiplier map, or by means of pressing the TAB key (switch from the previous mode). Multiplier calibration (change in adjacent fields) This mode is used to calibrate the multiplier for a given range of engine revolutions and of the petrol injection time. In order to calibrate the multiplier, the area which is to be calibrated must be selected by moving the mouse with the left button pressed over this area. Another method is to press the SHIFT key and, while holding it, to select the appropriate area by pressing arrow keys: ...
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Page 26: Options Menu
Rotating the diagram This mode is used rotate the 3D diagram. In order to rotate the diagram, press the right mouse button and move the mouse so that the desired result is achieved. Another method is to rotate the diagram by pressing the following arrow keys: ← Left arrow ↑ Up arrow → Right arrow ↓ Down arrow 2.14. Options menu The “Options” menu can be accessed from the upper menu. Thanks to the “Options” menu, the user can define their own 3D map window view, corresponding to their requirements. Fig. 18 ”Options” menu view The menu presented above makes it possible for the user to adjust the 3D map display mode. The following 5 display modes are available: ... -
Page 27: Multiplier Calibration Map "Digital" (For Stag-300 Plus, Stag-300 Premium Controller Only)
2.15. 3D multiplier calibration map “digital” (for STAG‐300 Plus, STAG‐300 Premium controller only) Upon pressing the “RPM calibration” tab, a digital multiplier calibration map is displayed in the map window. This map is a different method of visualising the 3D map described in 2.11. The digital map offers new possibilities presented below. Fig. 19 “Digital” multiplier calibration map view. Thanks to the “digital” multiplier calibration map shown above, it is possible to modify the multiplier according to rpm in the same manner as in the case of a “graphic” 3D map, also as regards the method of operating it by means of a keyboard. All changes to the “graphic” map will be represented in the “digital” map and vice versa because physically there is only one map in the controller memory, only the method of presentation is different. A far as map modifications are concerned, the following additional options are also available: “Changing value change neighbour too” – (if selected) in the case of modifying the selected area, the neighbouring fields are modified as well. “Show values” – (if selected) the controller displays calibration values in per cent. In this display mode, the “Erase” button can be seen. By pressing this button, all map settings can be deleted (the map can be reset). The vertical axis shows rpm values for individual intervals on the map. The red border marks the boundary between the first and the second rpm interval. If intervals are set as presented in Fig. 19 , the second interval operates from 300 to 500 rpm, while the third interval operates from 500 to 600 rpm. The boundaries between individual intervals can be regulated by clicking on the correct field and entering a new interval boundary value. Thanks to this option, it is possible to adjust the mixture composition to precisely defined rpm range and injection time. The user is not limited by preset intervals. For example, the operating range of the third interval can be modified to 500‐800 rpm. ... -
Page 28: Gas Temperature Calibration Map
The blue square which can be seen in the map changes its position within the horizontal axis depending on the actual petrol injection time value and within the vertical axis depending on the actual rpm value. 2.16. Gas temperature calibration map The Gas calibration map opens in the Map window after selecting the “Temperature calibration” tab. Fig. 20 Gas temperature calibration map view. The controller has the gas temperature multiplier calibration value permanently set. The gas temperature calibration map enables percentage adjustments of this calibration value. Editing the gas calibration map is analogous to the same function performed in the case of the multiplier map. 2.17. Controller update To update the controller, connect it to the diagnostic software and turn the engine off. Select “Controller update” from the main menu and select (STAG‐200, STAG‐4, STAG‐300 Plus, STAG‐300 Premium), depending on the connected controller type. The “Controller update” window will pop up. ... -
Page 29: Update Of Stag - Obd Adapter
2.18. Update of STAG – OBD Adapter In order to update a controller, connect it to a diagnostics program, turn the ignition on. Select option „Controller update” from the main menu and select STAG – OBD Adapter. Next, select an update from the list and press „Update” button. After successful completion of the update, an appropriate confirmation window should be displayed. If not, repeat the update process. Next, turn off the engine and restart; after approximately 30 seconds a connection with OBD should be established. Strona 29 z 34 ... -
Page 30: Stag-200, Stag-4, Stag-300 Plus, Stag-300 Premium Controller Programming
3. STAG‐200, STAG‐4, STAG‐300 Plus, STAG‐300 Premium controller programming There are two ways to program the STAG‐4 controller: Programming with the petrol and LPG maps. See 3.1 to 3.4 Manual programming of the controller. See 3.5. Programming with the petrol and LPG maps consists of the following stages: Auto‐calibration of the STAG‐4 controller Collection of the petrol injection times with petrol (petrol map) Collection of the petrol injection times with LPG (LPG map) Making sure both maps match and checking deviations 3.1. Auto‐calibration Prior to starting the auto‐calibration, start the engine and wait until the lambda probe begins to work. During the auto‐calibration the engine should work at idle run; do not increase rpm, switch off air‐ conditioning and lights and do not turn the steering wheel as this may cause errors during the auto‐ calibration. During the auto‐calibration, watch carefully petrol and LPG injection times. If LPG injection times are shorter than petrol injection times, the injector nozzles may be too large and should be replaced with smaller diameter ones. When the auto‐calibration is complete, 2 extreme yellow points ... -
Page 31: Collection Of The Petrol Injection Map With Lpg (Lpg Map)
3.3. Collection of the petrol injection map with LPG (LPG map) Having collected the petrol map, switch to LPG and collect the LPG map in the same way the petrol map was collected. The LPG map should be collected in the same road conditions and with similar loads as the petrol map. The LPG map is drawn with green points. Having collected sufficient number of green points, the map will be drawn with a continuous green line. If the controller is set properly (the multiplier characteristics selected properly), the petrol and the LPG maps should match. If the maps do not match, the multiplier characteristic should be corrected at the points where the maps do not match (the lower axis of co‐ordinates for injection times). If the LPG map is collected with the PC connected and the diagnostic software running, it is possible to immediately correct the multiplier characteristics when the collected green points do not match with the petrol map. It is even strongly ... -
Page 32: Multiplier Map Calibration - 3D Map (For Stag-300 Plus, Stag-300 Premium Only)
3.6. Multiplier map calibration – 3D map (for STAG‐300 Plus, STAG‐300 Premium only) Having performed auto‐calibration and having set the multiplier map while driving, additional calibration of the multiplier depending on the engine revolutions can be performed using the 3D map (see 2.13). If there are any differences in injection times for a given range of the petrol injection time and the engine revolutions after switching from petrol to LPG, such differences must be calibrated by means of enriching/weakening using the 3D map. The rule is the same as in the case of setting the multiplier, i.e. if the injection time value is bigger after switching from petrol to LPG, it means that the mixture is too lean at a given point within the map (the petrol computer lengthens the petrol injection time). Thus, the mixture must be enriched for this point using the 3D map. In a reverse situation, i.e. when the petrol injection time is shorter after switching from petrol to LPG, the mixture must be weakened. ... -
Page 33: Led Switchboard Operation And Acoustic Signals (User Manual)
4. LED switchboard operation and acoustic signals (User Manual) 4.1. LED switchboard The LED switchboard consists of: LED line indicating LPG level the LED indicating type of fuel button LED line– shows current LPG level in the tank. 4 green LEDs indicate a full tank; a red LED indicates “reserve”. The LED – shows current operating status: off – the engine runs on petrol slow blinking (once per second) – awaiting engine temperature reading normal blinking (twice per second) – the controller is in the auto‐mode (waiting for required rpm before switching to LPG) fast blinking (4 times per second) – controller error (no LPG in the tank) on – the engine runs on LPG Push button – for switching from one fuel type to another The controller “remembers” the last fuel type setting before switching the ignition switch off. In order to start the engine on LPG (e.g. when the petrol pump is damaged), press in and hold the button on the LED switchboard while turning the ignition on. The LED should come on. When the engine revolutions are detected, the controller turns the solenoid valves on and the engine starts on ... -
Page 34: Specification
When switching the ignition off – two short signals followed by a long one indicate a scheduled service visit. Visit a service station to have your system checked. 5. Specification Power supply voltage 12[V] ‐20% ÷ +30% Maximum power supply current value for 8 cylinder controller, 25 [A] LPG injectors 1[Ω] Current input in the standby mode < 10 [mA] Operating temperature ‐40 ‐ 110 [°C] Protection class IP54 6. Limited warranty / exclusions The warranty shall not cover the following: 1. Damage resulting from installing the unit inconsistently with applicable installation diagram. in particular, damage resulting from connecting signal wires to other connections than those indicated in the installation manual. 2. Damage resulting from installing the unit in locations inconsistent with the installation manual as ...
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