Mitsiman
21-12-2009, 02:47 PM
I am trying to get a very good understanding of the DBW maps for the Mitsubishi vehicles. The thing that seems to stand out to me, is that comparing the very well defined Subura DBW maps compared to the EVO X maps, we don't seem to ahve the same level of detail.
I am working on the late model Mitsubishi Lancer vehicles which use DBW mapping, but really want to get a full undestanding of the axis and what the numbers truly represent.
For example, working off an EVO X map which is the basemap we are using anyway, the main throttle maps use of course, an RPM Y Axis, the data in the map is of course the throttle plate opening value, but what is exactly the X Axis data?
In a subaru map, the X Axis represents Raw ECU Torque values, which makes sense. Do we know if that is what the Mitsubishi ECU's are using?
Going one step further, the Airflow Check and Torque Limiter Maps, same situation. The Y Axis is RPM, X Axis is TPS% but what value is actually being represented in the map itself. Is it again, a theoretical Torque value?
I beleive working this out thoroughly woudl go a long way towards setting up excellent DBW maps for many DIY tuners, enabling better throttle response and less CEL issues.
Look forward to hearing from some of the more experienced tuners / disassemblers.
I am working on the late model Mitsubishi Lancer vehicles which use DBW mapping, but really want to get a full undestanding of the axis and what the numbers truly represent.
For example, working off an EVO X map which is the basemap we are using anyway, the main throttle maps use of course, an RPM Y Axis, the data in the map is of course the throttle plate opening value, but what is exactly the X Axis data?
In a subaru map, the X Axis represents Raw ECU Torque values, which makes sense. Do we know if that is what the Mitsubishi ECU's are using?
Going one step further, the Airflow Check and Torque Limiter Maps, same situation. The Y Axis is RPM, X Axis is TPS% but what value is actually being represented in the map itself. Is it again, a theoretical Torque value?
I beleive working this out thoroughly woudl go a long way towards setting up excellent DBW maps for many DIY tuners, enabling better throttle response and less CEL issues.
Look forward to hearing from some of the more experienced tuners / disassemblers.