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The XMS is a very advanced engine management system. Here are the more common features:

1. FUEL INJECTION

* 8 direct injector drives, up to 6 Amp each
* Sequential injection, batch sequential and parallel by wiring
* Individual injector trimming
* Max injection time per injector is 40ms
* Max duty cycle is 100% (continuous ON)
* 128 main map sites for throttle and RPM
* 16 sites for manifold pressure
* 16 sites for Air temperature
* Other fuel components: Acceleration, Battery compensation, Lambda
* Priming
* Idle control
* Lambda loop control: Narrow or wide, partial to full

2. IGNITION

* 4 ignition outputs requiring EXTERNAL driver
* Wasted spark output configuration
* Positive active output to suit most commercial drivers
* 128 main map sites specifying ignition angle in degrees
* 16 Manifold pressure sites
* 16 Engine temperature sites
* 16 Dwell sites (by RPM)
* Ignition fault input from external driver
* Total ignition: main map entry in degrees
* +- Manifold pressure entry
* +- Engine temperature entry more...

3. TRIGGER INPUTS

* Separate CRANK (CB1) and CAM (CB2) inputs
* All inputs balanced (floating) for extra noise immunity
* Inputs can be configured for un-balanced high threshold level
* Missing tooth or CAM cylinder identification
* Multiple teeth trigger from 18-60 teeth per turn
* Optional Single tooth trigger modes

4. WIDE BAND LAMBDA

* Built-in Wide Band lambda circuit for BOSCH LSU4
* Partial or complete loop operation
* Display in AFR
* Warning of probe error (Warm up, Temperature, limits)

5. NARROW BAND LAMBDA

* Standard 0-1V input
* Partial or complete loop operation
* Display in AFR

6. BOOST CONTROL

* For Turbo waste gate control
* 16 Manifold pressure target sites
* 16 Target adjustment sites
* 16 Base PWM sites for low to medium throttle
* 16 Base PWM sites for high throttle
* Response time control and target RPM settings. more...

7. PRIME (FUEL)

* 16 sites accessed by Engine temperature allow extra fuel during starting.

8. IDLE CONTROL

* For direct connection to 2 wires and 3 wires idle motors
* Target RPM setting
* 16 PWM sites to control idle motor
* Response time setting

9. SETPOINT CONTROL

* 16 Set point functions
* 8 relay drive outputs capable of 1 Amp for output activation
* Each set point has a high/low limit
* Each set point can be linked to ONE other set point
* Linking via “AND” or “OR” logic
* Each set point can generate an “engine fault” indication
* Hard or soft fuel cut on 8 set point functions more...
* Functions can be assigned to a pin

10. FAULT INDICATION AND CONTROL

* Close to 128 fault detection points
* Each fault can be enabled/disabled
* 16 possible group faults such as fuel, ignition, injection
* Group faults are reported “on line” and cause the corresponding display to go red
* On board fault indication LED
* Facilitates very easy installation

11. HISTORY RECORDING

* Driving history is recorded in minutes per main map site
* Reset, clear and up-load facility

12. ON BOARD MAP SWITCHING

* The XMS holds 2 separate complete tune maps
* The maps (A, B) can be switched while driving
* Each map holds close to 2000 tune points
* The maps are protected against power failure

13. LAUNCH CONTROL

* Extra switch input
* Proportional retard above a preset RPM limit
* Retards up to -40 degrees
* Reduces fuel when RPM limit is exceeded by 500RPM

14. EXTERNAL SUPPLY TO SENSORS

* +5 Volt output to power manifold pressure and temperature sensors

15. UPGRADING

* The XMS is can be upgraded in the field. The latest firmware version can be downloaded from the website to “re-flash” the unit.
* Upgrades are available via the internet
* Upgrades are protected and version controlled

16. CONSTRUCTION

* Non-encapsulated! Requires installation in the cabin!
* Aluminium casing, anodised, Shielded!
* Size 90x230x16 mm

17. ON-BOARD DISPLAY

* 1 Power LED
* 8 Indications:
o FAULT
o CRANK ACTIVITY
o CAM ACTIVITY
o 5 ignitions per cylinder activity

18. PRE-PROGRAMMED OPERATIONS

* The XMS holds 32 different engine set up for CRANK and CAM triggers
* Ideal for using the standard engine sensors
* No need to modify pick up points

19. SOFTWARE FUNCTIONS

* 7 Maps
* Different on-line displays
* 2 Tune maps, can be switched while driving
* Close to 2000 tune points per map
* Quick-save Tune map operation
* The HELP manual is linked to the tune screens for quick reference
* Each sensor input can be customized and calibrated to any sensor

20. ON LINE HELP

* The manual is available with the software
* Ideal for installation
* Ideal for tuning

21. WINDOWS OPERATION MANUAL

* Step by step guide for software operation
* Available on CD!

22. APLICATION NOTES

* They become available for the weird and wonderful applications

23. BUG REPORTING

* We don’t like bugs, but we have them. The enclosed list shows you what we will fix soon! It may suggest a “work around” for the bug!

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