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S&S Guardian Diagnostic System

The Guardian Diagnostic System offers engine builders and tuners some powerful tools to use with the S&S IST Ignition module. The Guardian Kit contains a software CD for PC‘s, a translator unit and two cables that connect the translator to the COM port of your PC, and to the data link on the motorcycle wiring harness. Once connection between the computer and IST module is made, the software allows access to new functions and diagnostic data. The GDS works with IST systems manufactured after October 1st 2003 for applications thru 2003. With IST modules manufactured after Oktober 1st 2005 (serial number begins with „G“ or higher letter) the year range can be expanded for 2004-2005 models.

GDS allows you to use a PC with a 9-pin COM port to perform the following functions:

  • enable the break-in rev limit function to protect a new or rebuilt engine during break-in (this break-in rev limiter allows S&S to offer an extra year of warranty on IST equipped engines)
  • adjust the final rev limit up to 7,200 rpm
  • look at diagnostic test codes (DTCs) or clear history DTCs (scan tool function)
  • calibrate the speedometer in 2004-2005 models.
  • look at live data (rpm, manifold absolute pressure, engine temperature, battery voltage, spark timing, dwell, and coil current) for both cylinders while the engine is running, to aid in service work or performance development
  • look at history information (number of starts, number of rev limiter hits after the break-in rev limit has expired, amount of time spent in various operating conditions, maximum temperature reached, current „rev“ limit, total engine cycles & running time).

GDS System Requirements

  • Microsoft Windows 98 or higher operating system.
  • Pentium II 450 MHz processor or faster/equivalent, Pentium III-1Ghz or faster/equivalent recommended.
  • minimum 64 MB RAM, 128 MB or more recommended.
  • at least 300 MB of free hard drive space.
  • CD-ROM or DVD-ROM drive required for installation.
  • 9-pin serial port for communication with ignition module.

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If your computer does not have a 9-pin serial port, a USB to Serial Adapter can be used.
Diagnostic cable »Guardian«; with software cd
W&W# Picture net price* Available from warehouse Germany?
68-428 S&S Guardian Diagnostic System complete kit with software $413.15 kit
in stock
* United States of America: Tax free shipping. Please check your local import fees.

Have any questions?

  • Our sales team will be glad to help out:
    Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET
    Phone: +49 / 931 250 61 16
    eMail: sales@wwag.com