V3.2.x / 2.8.x New Feature: Dual on-the-fly switchable Ignition Configuration: Difference between revisions
(added picture to illustrate V2 hardware option switch modification) |
|||
| Line 25: | Line 25: | ||
===2.x MJLJ controller=== | ===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: | |||
<center> | |||
[[Image:MJLJ_V2_option_switch_mod.png]] | |||
</center> | |||
Switch between ground and open circuit | Switch between ground and open circuit | ||
Revision as of 00:40, 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 3.1.0 controllers, 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 with TPS
Switch between ground and the 5v Vref used to drive TPS
- Insert schematic here*
3.x MJLJ controller with MAP sensor
switch between ground and +12v into option port via 1K Resistor (to limit current on 5v zener)
- insert schematic here*
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:
Switch between ground and open circuit
- add schematic here*
Enabling switchable ignition configuration
...To do...
