Use this high quality MS3X wiring harness to take advantage of all the great features on the MS3X expansion board.

Use this standard GM intake air temperature (IAT/MAT) sensor with any MegaSquirt system.

Use this standard GM coolant temperature (CLT) sensor with any MegaSquirt system.

Use this 4N25-based module to add a cam signal from a Hall effect or optical sensor to your MegaSquirt ECU. Cam signals are usually required for sequential coil-on-plug (COP) ignition and sequential fuel injection applications. This module can also be used to condition the signal from Hall effect or optical pulse generating signal sensors (vehicle speed sensors, wheel speed sensors, etc.).

Use this MAX9924-based module to add a cam signal from a VR sensor to your MegaSquirt ECU. Cam signals are usually required for sequential coil-on-plug (COP) ignition and sequential fuel injection applications. This module can also be used to condition the signal from nearly any type of pulse generating signal sensor (vehicle speed sensors, wheel speed sensors, etc.).

The SymTech Labs Sequential Fuel Injection Kit includes one SymTech Labs PH Injector Driver Module and one SymTech Labs Input Module.

SymTech Labs' Peak & Hold (PH) Fuel Injector Driver Module efficiently drives low impedance, or "peak and hold," fuel injectors. Designed for use with MegaSquirt EMS systems, the SymTech Labs PH Injector Driver Module supplants the injector drivers on either v2.2 or v3.0 boards.

The LC-1 is a complete wideband controller built in to a sealed cable. This LC-1 wideband controller works very well with MegaSquirt EMS.

The MTX-L is a complete wideband controller built in to a stylish 52mm/2-1/16" gauge. It features the same award-winning patented digital measurement principal found in the LC-1 and LM-1, and includes digital input, output, and 2 programmable analog outputs. The MTX-L wideband controller works very well with MegaSquirt EMS.