What exactly is the difference in the logger between standard parameters and extended parameters?
Subaru dealers use a diagnostic tool known as the Subaru Select Monitor (SSM) which takes advantage of a standardized protocol built-in these ECUs. This allows them to log a number of parameters (some which are not available via OBD-II) and at a faster rate. RomRaider’s logger also takes advantage of the SSM protocol and allows you to log the same ‘standard’ SSM parameters specific to each Subaru ECU. Extended parameters, however, are not available to the dealer. These are added separately to RomRaider’s logger to allow users access to additional ECU parameters that may be useful when tuning (ex. feedback knock correction, IAM, engine load, boost error, etc). Since these must be defined manually for each ECU by analyzing a copy of the ROM, only those ROM revisions supported by the ECU definitions are also supported with extended parameters in the logger. Extended parameters are marked with an asterisk (*) at the end of the parameter’s name to differentiate them from standard SSM parame
Related Questions
- The extended parameters are not showing up in my list of parameters, even though my ECU is supposed to be supported for extended parameter in the logger definitions. Why?
- What exactly is the difference in the logger between standard parameters and extended parameters?
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