Map Modifications

Map modifications are the very core of the tuning process. Depending on the type of the tune and the fuel the engine uses, there are a number of possibilities.

These are the maps that are are most commonly changed in a tuning file

Diesel tuning file map modifications:

For diesel engines we modify the following maps in the ECU

  • Throttle response
  • Smoke limiters
  • Temperature limiters
  • Lambda
  • Torque limiters
  • Start of injection
  • Injection duration
  • Newton meter conversion
  • Turbo pressure
  • Turbo system duty cycle
  • Turbo limiters
  • Rail pressure
  • Rail pressure limiters
  • Gearbox limiters
  • Gearbox shift time (optional)
  • EGR function delete (optional)
  • DPF function delete (optional)
  • Speed limiter (optional)

Petrol tuning file map modifications:

For petrol/gasoline engines we modify the following maps in the ECU

  • Throttle response
  • Temperature limiters
  • Lambda request
  • Lambda component protection
  • Torque limiters
  • Ignition timing
  • Camshaft timing
  • Requested air load
  • Wastegate duty cycle
  • Wastegate duty cycle linearisation
  • Wastegate duty cycle limit
  • Max air load
  • Rail pressure
  • Rail pressure limiters
  • Gearbox limiters
  • Gearbox shift time (optional)
  • Knock threshold
  • Lambda/O2 sensor delete (optional)
  • Speed limiter
  • MAF scaling (Stage 3)
  • Injector sizing (Stage 3)
  • Max air load
  • Rail pressure
  • Rail pressure limiters
  • Gearbox limiters
  • Gearbox shift time (optional)
  • Knock threshold
  • Lambda/O2 sensor delete (optional)
  • Speed limiter (optional)
  • MAF scaling (Stage 3)
  • Injector sizing (Stage 3)

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