A pakistani guy made an Engine Control Unit (ECU) first time in the History of
Pakistan from scratch using basic cheap PIC microcontroller. That controls the
spraying of the Fuel injectors, manages the Ignition System consisting of
Electronics Distributor less Ignition System (EDIS). In Pakistan EFI engines get
assembled only but the manufacturing or designing ECU is still a novel idea.
www.youtube.com/watch?v=K_fpNcJUpcQ
This ECU has following features:
1) Adjustable Idling Speed.
2) Cold Start feature for better cranking in winters. Just starts in first Attempt.
3) Fully Controllable Ignition Timing (Advance/Retard) no need for Advancer in case of CNG.
4) Injector Duty Cycle is Programmable (Rich/Lean).
5) Cooling FAN can be set at any Temperature.
6) Fuel Pump runs only if Engine is running.
7) One can tune it for racing to extract maximum output from the Engine.
8) It can be set on Economical Mode for Extra Fuel Saving.
9) Engine Maximum RPM can be limited at any set point. To enhance the Engine Life.
10) Injectors can be disabled just by giving one Pulse so there’s no need of Emulator for CNG.
ECU Inputs:
Intake Air Temperature Sensor, Throttle Position Sensor, Manifold Absolute Pressure Sensor, O2 Sensor, Oil Pressure Sensor, Knocking Sensor, Coolant Temperature Sensor, CAM position Sensor, Crank Angle Sensor, VVT Feedback Sensor.
ECU Outputs:
3-Fuel Injectors, 3-Ignition Coils, Idling Air Control Valve, VVT Solenoid, Purge Valve, Radiator cooling FAN, Fuel Pump, + RS232 port for Data Monitoring
more than that i made all this just for Fun, Engines r my Babies
Best Regards
Engr Asad Hameed