Package Porsche 991.1 2014.January 2021 "Porsche 991.1 - Turbo - Base"

Current Version

• Added Fuel Composition to Fuel Injector Secondary Contribution Main table as an axis option.
• Added Fuel Composition Clamp.
• Fuel Pressure Control Crank added.

01.02.0130

• Throttle Pedal Kickdown Threshold converted to a table based on Porsche State Drive Mode and Vehicle Speed.
• Porsche TCM Ignore Launch Request added.
• Driver Race Time Switch added.
• Race Time Vehicle Speed added.
• Vehicle Speed Estimate added.
• Launch Engine Speed Main changed to reference Vehicle Speed Estimate.

01.02.0127

• Fixed Gear updating between gear changes.
• Throttle Pedal Kickdown Threshold validation limit maximum changed to 101% to allow for permanently disabling this function.

01.02.0125

• Enhancement to Porsche TCM Take Off that prevents activation during First to Second gear upshifts.

01.02.0120

• Added Inlet Manifold Pressure Filter.

01.02.0118

• Porsche TCM Take Off Request added. Porsche TCM Take Off will only be set in First or Reverse.

01.02.0117

• Added support for GT2 RS. See Porsche Model selection.
• Engine Speed Control Power On setting added. Allows for further refinement of engine speed match tuning via the Engine Speed Control Limit Margin and Engine Speed Control Gain.
• Porsche Exhaust Valve strategy updated.
• Porsche Mode Select operation fixed.

01.02.0093

• Boost Limit considered in Engine Load Maximum.
• Boost Pressure Sensor will always be offset by Ambient Pressure.
• Fuel Timing Primary Injection Time added.
• Fuel Timing Primary End added. Informational channel.
• Porsche Start Request Delay exposed.
• Fuel Pump ID added.
• Porsche Mode Select added.
• Fuel Pressure Control Off added.
• Fuel Pressure Control Prime added.

01.02.0088

• Removed Torque Demand Bias.

01.02.0080

• Added additional resolution to the clutch pressure logging.
• Clutch State will enter Take Off mode when indicated to do so by the Porsche TCM via Porsche TCM Take Off becoming Enabled.
• The following removed as a result:
• Clutch Slip Detection Post Take Off Delay
• Clutch Slip Detection Gear Input Shaft Speed Take Off
• The behavior of Gear Input Shaft Speed has been changed:
• Will be equal to Porsche TCM Engine Speed Expected when Clutch State is Take Off.
• Rolling Launch added.
• Driver Rolling Launch Switch added.
• Launch system requires that Porsche TCM Launch Request is Enabled before it will engage.

01.02.0042

• Added Fuel Pressure Direct Bank 1 Current Feed Forward. Informational channel to display the calculated feed forward.
• Fuel Pressure Direct Bank 1 Current Resistance is now a table. Tuning this table will improve the accuracy of the feed forward calculation.
• Fuel Pressure Direct Bank 1 Battery Voltage Filter added. Provides the fuel pressure control system with a separate battery voltage reading on it's own filter time constant for improved accuracy.
• Traction system disabled when Porsche TCM State is Down Shift.

01.02.0040

• Added Gear Idle Compensation.
• Renamed Porsche TCM Gear Input Shaft Speed to Porsche TCM Engine Speed Expected.
• Added Porsche TCM Gear Output Shaft Speed.
• Initial clutch relearn compatibility. Although the system will monitor for an active scan tool before the engine is started, Porsche TCM Logging can be disabled before using a diagnostic tool to ensure no collisions as they same protocol is used. Tested on 991.1 Turbo and 991.2 Turbo S variants with Snap On and Autel diagnostic tools.
• Added Gear Up Shift Decay Time.
• Updated up shift strategy -- See Gear Up Shift help for the details.
• System better mimics behavior seen in OEM data captures.
• Fuel Pressure Direct Bank 1 Control Feed Forward updated to reference Fuel Volume Per Cycle Primary.
• While feed forward must be retuned on existing packages migrating to this version, the effort rewards in more predictable fuel pressure control.
• Clutch Slip Control Tolerance added.
• Porsche TCM Logging updated and validated to function on 991.1 as well as 991.2 variants.
• Porsche TCM Clear updated and validated to function on 991.1 as well as 991.2 variants.

01.02.0001

• Initial release of the Porsche 991.1 package based on GPR-DI.