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EBC build overview
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Goal
How to accomplish
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Provide two boost pressure settings (gasoline ~15 psi and CNG ~20psi)
Arduino programmed EBC.
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Provide fuelling for the increased boost in a reliable way
MAF controlled fuelling on vehicle should add gasoline as needed, CNG controller to be calibrated to provide CNG as needed (requries logging / calibration)
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Not enter limp mode when boosting over stock
Regulate the boost sensor voltage the stock ECU so it see's ~10 psi of boost, in detail a DAC circuit output (0-5V) on arduino fed to ECU input previously sensing the boost pressure
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Regulate wastegate pressure in a reliable way (fast build and no overshoot)
3 way high speed solenoid valve to regulate wastegate pressure, driven by a high speed MOSFET controlled arduino nano
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Programmable control setpoints
Arduino to pull program parameters from EEPROM, Two stored (EEPROM) programs capable of being tuned through the nano serial port
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Autoswitch between programs when on CNG vs gasoline
CNG system on signal fed to arduino
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