SMT8-X TECHNICAL MANUAL

Perfect Power Online Manuals.

 

Support for your SMT8-X Unit.

MAP SWITCHING

The SMT8_X comes with two entirely separate tune maps in memory. We call them map “A” and map “B”. The LETRIPP Software displays the present map in the upper right hand corner or in the STATUS display. Two maps are used for:

 

  • Performance versus Economy
  • Tested versus untested
  • Normal versus high altitude
  • Good fuel versus bad fuel
  • Weather

 

NOTE: Please make sure that you have a valid tune map in map “B” before you flip the switch.

 

 

MECHANICAL SWITCH

 

There is an option to connect (pin 5/14) an external mechanical switch to the SMT8X to enable it to do map switching. Without this mechanical external switch, the unit will default on power up to Map A (open pin). Should the mechanical switch be installed, the unit will power up and run on the map selected. The transition between maps switching is seamless and can be performed while the vehicle is in operation, provided both maps are loaded.

SMT8-X Piggy-Back Unit - Wiring Diagram for Mechanical Switch

WIRING DIAGRAM FOR MECHANICAL SWITCH