V3.2.x / 2.8.x New Feature: Dual on-the-fly switchable Ignition Configuration: Difference between revisions

(New page: The new firmware offers the ability to switch between two ignition configurations on the fly, via a driver-operated switch. Enabling this feature is accomplished in two parts. ==Wiring ...)
 
(completed section for switchable ignition maps)
 
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==Wiring option switch==
==Wiring option switch==


For 3.1.0 controllers, the option input on the Molex connector is used to switch the ignition configuration. The active configuration is selected as follows:
For 3.x controller hardware, the option input on the Molex connector is used to switch the ignition configuration. The active configuration is selected as follows:


Configuration 1: 0 volts present on Option Port
Configuration 1: 0 volts present on Option Port
Configuration 2: 5 volts present on Option Port
Configuration 2: 5 volts present on Option Port


''Note: there are multiple ways to enable the option port; presented are the approaches which require zero to minimal modification to the MJLJ PC board.''
''Note: there are multiple ways to enable the option port; presented are the approaches which require zero to minimal modification to the MJLJ PC board.''


===3.x MJLJ controller with TPS===
===3.x MJLJ controller===
<center>
[[Image:MJLJ_V3_wiring_option_switch.png]]
</center>


Switch between ground and the 5v Vref used to drive TPS
===2.x MJLJ controller===
*Insert schematic here*


===3.x MJLJ controller with MAP sensor===
To enable switchable maps on V2.x hardware, you will need to make a small patch on the MJLJ circuit board. Use the following as a guide:


<center>
[[Image:MJLJ_V2_option_switch_mod.png]]
</center>
<br>
<center>
[[Image:V2_Option_switch_board_mod.jpg]]
</center>


switch between ground and  +12v into option port via 1K Resistor (to limit current on 5v zener)
==Enabling switchable ignition configuration==
*insert schematic here*


===2.x MJLJ controller===
While connected to the MJLJ, open the "Global Controller Options" dialog by clicking "Tools / Global Controller Options". Enable the dual ignition config feature by clicking the check box.
<center>
[[Image:mjlj_global_config_options.png]]
</center>
To commit the new settings, click '''Write options'''. Now the controller is configured for switching maps on the fly.


Add pull up resistor between +5v side of 2n3905 to unused pin on molex connector (Option port on V3.x board) and add jumper to processor pin
==Verification of Ignition Map switching==
Switch between ground and open circuit
*add schematic here*
 
 
==Enabling switchable ignition configuration==


...To do...
After wiring your option switch and enabling the firmware for dual maps, you can verify it's operation by monitoring the configuration software. The Software will alert you when the ignition map is switched. You can configure the software's behavior when the map is switched by opening the dialog under 'Tools / Configurator Options".

Latest revision as of 03:09, 22 April 2007

The new firmware offers the ability to switch between two ignition configurations on the fly, via a driver-operated switch.

Enabling this feature is accomplished in two parts.

Wiring option switch

For 3.x controller hardware, the option input on the Molex connector is used to switch the ignition configuration. The active configuration is selected as follows:

Configuration 1: 0 volts present on Option Port Configuration 2: 5 volts present on Option Port

Note: there are multiple ways to enable the option port; presented are the approaches which require zero to minimal modification to the MJLJ PC board.

3.x MJLJ controller

MJLJ V3 wiring option switch.png

2.x MJLJ controller

To enable switchable maps on V2.x hardware, you will need to make a small patch on the MJLJ circuit board. Use the following as a guide:

MJLJ V2 option switch mod.png


V2 Option switch board mod.jpg

Enabling switchable ignition configuration

While connected to the MJLJ, open the "Global Controller Options" dialog by clicking "Tools / Global Controller Options". Enable the dual ignition config feature by clicking the check box.

Mjlj global config options.png

To commit the new settings, click Write options. Now the controller is configured for switching maps on the fly.

Verification of Ignition Map switching

After wiring your option switch and enabling the firmware for dual maps, you can verify it's operation by monitoring the configuration software. The Software will alert you when the ignition map is switched. You can configure the software's behavior when the map is switched by opening the dialog under 'Tools / Configurator Options".