Kia Rio JB 2009: Crank no start until ECU reset

I drive a Kia Rio JB 2009 (Manual Transmission) with Kefico ECU. With my key at ON position, ECU light won’t come on in the dash, hence, it only cranks without starting when kicked. However, when the ECU is unplugged for about 30secs and plugged back, it starts. This reoccurs virtually every time I need to start the car. There was a time I was experiencing poor acceleration, I unplugged the MAF sensor and the acceleration was smooth, ever since, I’ve been driving (for about 6months) with the MAF sensor unplugged. Could this have resulted in the ECU problem? All fuses seem fine. Pls I need your advice

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