Active tuning system for engine control unit

1. A method for an engine control unit to update internal tables based on feedback from an engine without external computing, comprising the steps of:

providing flash memory and RAM memory in the engine control unit;

copying fuel adjustment values from the flash memory to the RAM memory;

modifying the fuel adjustment values copied to the RAM memory based on feedback from sensors while the engine control unit is running;

reassigning the engine control unit to stop reading fuel adjustment value from the flash memory and begin reading fuel adjustment values from the RAM memory; and

adjusting a fuel to air mixture in the engine based on the fuel adjustment values from the RAM memory.

2. The method of claim 1 , further comprising:

copying engine timing values from the flash memory to the RAM memory;

modifying the engine timing values copied to the RAM memory based on feedback from knock sensors while the engine control unit is running;

reassigning the engine control unit to stop reading engine timing values from the flash memory and begin reading engine timing values from the RAM memory; and

adjusting a spark plug ignition timing in the engine based on the engine timing values from the RAM memory.

3. The method of claim 1 , wherein at engine start-up, the engine control unit copies fuel adjustment values from flash memory to RAM memory after a disconnection from a power supply, and saves previous fuel adjustment values in the RAM memory until the engine control unit is disconnected from a power supply.

4. The method of claim 1 , wherein a lambda sensor delay is determined to account for a delay between a lambda sensor reading and a change in engine conditions.