COBB Custom Features: 5-Way Map Switching on Ford Vehicles

How To:5-Way Map Switching on Ford Vehicles

Applicable Model/Year: 

  • Ford Fiesta ST 2014-19
  • Ford Focus ST 2013-2018
  • Ford Focus RS 2018
  • Ford Mustang Ecoboost 2015-2017

How To Enable:

 This comes pre-enabled on all current OTS maps.  If your map switching isn't working ensure you are on the most recent firmware and maps for your unit.

Steps to Use:

  1. Flash a map with 5-way map switching enabled
  2. Click cancel/resume button on your cruise control in order to activate the switching.
  3. Use "Set -" and "Set +" to change between available maps.
  4. Map position will be marked on the tachometer by the needle sweeping to 1,2,3,4, or 5.  Or you are able to add a gauge on the Accessport to monitor map position.

On OTS maps

Focus ST/Fiesta ST - Slot 1 is High Performance, Slot 2 is Economy Mode

Focus RS/Mustang Ecoboost - Slot 1 is High Performance Slot 2 is Economy

Available Adjustments and How to Make them:

Each individual map slot has a multitude of adjustments you are able to make, which can allow you to replace the stock maps with a large variety of options for all sorts of conditions.  All adjustments must be made in Accesstuner Pro software by a licensed Protuner

  • Desired Fuel Target (Power Demand)
    • This is the primary set of fuel targets used once the accelerator pedal position threshold is met from the Power Demand Threshold (APP) table
  • Fuel Scalar Stoichiometric Setpoint
    • This value can be used to adjust fuel trim for other fuels (like e85) Lowering this value will drop a positive STFT/LTFT, while raising this value will bring your fuel trims higher.
  • Ignition Timing Offset (Global) 1d
    • Offsets your timing globally by the adder/subtractor found in this table.
  • Ignition Timing Offset (Global) 1d Load Min.
    • Minimum load required to activate the Ignition Timing Offset
  • Ignition Timing Offset (Global) 3D
    • The values in this table get multiplied by current octane adjust ratio to allow further customization to the ignition timing curve under varying conditions.
  • LC Hard Cut (Fuel Cut) Rev Limit
    • The RPM level at which the fuel cut will activate when using launch control.
  • LC Soft Cut (Throttle Cut) Rev Limit
    • The RPM level at which the throttle cut will activate when using launch control.
  • LC Soft Cut (Throttle Cut) Rev Limit Offset
    • The amount the RPM limit will drop before going back up when hitting the LC Soft Cut Rev Limit
  • Rev Limiter (Fuel Cut)
    • The RPM level at which the fuel cut ROM limiter will kick in when the engine is running.
  • Rev Limiter (Standard FFS)
    • This is the custom engine speed limiter used when activating the flat-foot shifting system.
  • TIP Desired Max. (Ceiling)
    • The maximum pressure (psi) allowed in intake tract before the throttle blades
  • TIP Desired Max. (Ceiling) 3d
    • Table that covers maximum amount of pre throttle pressure allowed in intake tract 
  • TIP Desired Target (Per Gear)
    • Maximum amount of pre throttle pressure allowed in intake tract per gear
  • TIP Desired Target (Per Gear) APP Min.
    • Minimum accelerator pedal position to activate TIP Desired Target (per gear)
  • Torque Maximum Table Selection
    • Allows custom configuration of which torque table pair (with and without overboost for max/high/medium/low) to use for the map slot.
  • WGDC Base
    • Base values for the Waste Gate Duty Cycle percentage before any other systems and compensations become active.
  • WGDC Boost By Gear Multiplier
    • Allows a throttle based adjustment of wastegate duty cycle based on what gear the vehicle is in.  This will be applied to WGDC after all other calculations.
  • WGDC Compensation Mode
    • Custom feature which allows greater control of WGDC
      1. Functions like stock but with added barometric pressure and user selectable temperature compensations using AAT,IAT or ECT.
      2. Incorporates mode 1 and adds additional compensations for charge air temperature, TIP Boost Error, and Load Error.
      3. Identical to mode 1 but uses the COBB WGDC base table.
      4. Identical to mode 2 but uses the COBB WGDC base table.


  • AAT – Ambient Air Temperature
  • CCT – Catalytic Converter Temperature
  • ECT – Engine Coolant Temperature 
  • EOT – Engine Oil Temperature
  • EVT – Exhaust Valve Temperature
  • MBT – Minimum Timing for Best Torque
  • AFR – Air to Fuel Ratio (Lambda)
  • DC – Duty Cycle (used with various solenoids)
  • ECU – Engine Control Unit (also known as PCM)
  • MAP – Manifold Absolute Pressure (Post-Throttle)
  • OAR – Octane Adjust Ratio
  • FRP – Fuel Rail Pressure
  • LTT – Load To Torque
  • OTS – Off The Shelf
  • OB – Overboost
  • LSPI – Low Speed Pre-Ignition
  • HDFX – High Degree of Freedom Executive
  • CAT – Charge Air Temperature
  • COT – Compressor Outlet Temperature
  • EFT – Exhaust Flange Temperature
  • TOT – Transmission Oil Temperature
  • IAT – Intake Air Temperature
  • BL – Borderline (for ignition timing tables)
  • CL/OL – Closed Loop/Open Loop (for fueling tables) 
  • DTC – Diagnostic Trouble Code
  • O2 – Oxygen Sensor 
  • TIP – Throttle Inlet Pressure (Pre-Throttle) 
  • VCT – Variable Camshaft Timing
  • VSS – Vehicle Speed Signal (MPH/KPH)
  • TTL – Torque To Load
  • FBO – Full Bolt Ons
  • UB – Underboost
  • PD – Power Demand
  • VE – Volumetric Efficiency

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