Med91 Multimap ((better))
The beauty of the MED9.1 multimap is its integration with factory controls. You don’t need extra buttons; instead, the ECU uses existing inputs.
This is a significant step forward from having just one performance tune, as it offers unparalleled flexibility. A typical Multimap setup on an MED91-equipped car might include:
The most popular implementation is the . It functions by: med91 multimap
As the "brain" of the engine, the MED91 ECU constantly monitors a vast network of sensors to precisely control critical parameters like fuel injection, boost pressure from the turbocharger, ignition timing, and throttle position, ensuring optimal performance and efficiency.
The defining feature of the Multimap is its modular design. Unlike standard linear navigation logs that follow a point-A-to-point-B structure, a Multimap typically presents a series of variable scenarios or "modules" on a single sheet or interactive display. This design mimics the reality of modern tactical aviation, where a mission profile can shift rapidly from navigation to evasion, or from reconnaissance to combat maneuvers. The beauty of the MED9
: Flicking the resume/cancel or speed adjustment toggles while the ignition is on.
The chosen map is saved to EEPROM, so it stays active after turning off the engine. 🔧 Technical Implementation Based on: vkKraQu maps or custom patching of the binary. A typical Multimap setup on an MED91-equipped car
🚀 Unlock Your VAG MED9.1 Potential: Multimap Switching Now Available!
Many multimap patches also include additional functions like Launch Control (LC) No-Lift Shift (NLS) , and individual RPM limiters for each map. Implementation Guide 1. Preparation and Tools Binary File: You need the original file from your ECU. Patching Tool: Use a dedicated solution like the MED9.1-Multimap-Tool by EliasTuning or professional software like WinOLS Solutions Hex Editor/Ghidra:
Most calibrations offer up to 4 or 5 switchable slots. A standard configuration for a heavily modified vehicle usually includes: Slot Number Profile Name Description / Use Case Daily / Low Boost Optimized for fuel economy and 95 RON (91 Octane) pump gas. Slot 2 Performance
: The tool patches the ECU software so that the cruise control status (enabled/disabled) or other inputs can trigger a switch between different sets of tables, such as the LDRXN (Maximum Specified Load) maps.