MegaSquirt 3 ECU with MS3X Expansion

The DIYAutoTune MS3X357-C is a standalone engine management system designed for precise fuel control. This MegaSquirt 3 ECU comes with the MS3X expansion module, offering advanced features that surpass older MS2 and MS1 systems. Key capabilities include sequential fuel and spark control, a 2-step rev limiter, progressive nitrous injection, and boost control. This ECU boasts a 16x16 VE and ignition table resolution with full interpolation, ensuring smooth transitions and accurate tuning. It provides 0.1% fuel step resolution and 0.1° ignition accuracy for fine-tuned engine management. Connectivity is streamlined with a built-in USB port for easy laptop integration, and data logging is supported via an SD card. The system offers 8 sequential fuel injector outputs, compatible with LSx coils, IGN1A, and other smart coils, alongside 8 logic level 5-volt ignition outputs and 6 medium current outputs. Input capabilities include 3 analog sensors and 4 switch inputs, plus a dedicated cam sensor input.