Time Tuning (RTT™)
RTT™ is an operating system modification that allows real time
modification of selected parameters in the PCM's RAM.
Parameters are updated via customized OBD2 commands in real
The user selects an operation "mode" that defines which tables are
enabled for real time.
Example modes are main fuel/spark, idle, O2/knock etc.
The RTT™ system is primarily controlled by VCM Scanner and when
enabled, tables are copied from flash chip to RAM and can be
modified in real time.
After tuning is complete the final table can be written to the PCM
and stored permanently using regular VCM Editor processes.
- Software only, no special hardware required
- Enough functionality to tune the car. (Not every parameter
requires real time support)
- Auto-tuning capability (Available in a future release)
- Easy to use
- Low cost
Do NOT attempt changing real time tune values while driving the
Doing so may cause driver distraction and possible vehicle
Real time tuning is designed for quick tuning under controlled
conditions like an engine or chassis dynamometer.
Use caution when entering values into the real time tuning
Improper use may cause vehicle damage and or unsafe driving
User assumes all safety responsibility for use of and values
entered into real time tuning mode.