Standalone Engine Management SEM103 Based on MS3x
$USD 220.0
Out of stock
Overview
Standalone engine management system based on Megasquirt MS3x Processor and firmware with enhanced inputs and output ports. It is capable of controlling sequential injection on engines up to 4 cylinders, or semi-sequential up to 8 cylinders, combined with direct fire ignition for engines up to 4 cylinders or wasted spark ignition on engines up to 8 cylinders. Can be connected as fully standalone ECU or as piggyback and share the sensor reading with the stock ECU as it has differential trigger inputs, The 4 bar internal MAP sensor can read up to 44psi of boost, Programmable knocking detector circuit can be used to adjust the ignition timing, Â 5V ref voltage, and internal switch to pull up resistor. The CAN bus facilitate the communication with SPTRONICS O2 sensor wideband controller and EGT amplifier for more accurate reading. It has dedicated inputs (Crank, CAM, CLT, IAT, MAP, TPS, O2 and knocking) and 9 low side outputs to drive injectors or any solenoid valve. 4 dedicated ignition outputs. Bluetooth connectivity.
Description
- 2x Deferential Trigger inputs (Hall, VR and Opto).
- 4x High impedance injectors output  2.5A each.
- 4x Ignition output 1A max (5V or 12V)
- 4x dedicated analog input, coolant temperature, Intake air temperature, Â O2 sensor, Throttle position.
- Fuel pump output.
- Tachometer output (5V or 12V).
- 2/3 wire Idler control.
- Knocking input with adjustable gain.
- 2x analog/digital inputs.
- 3x 2.5A outputs.
- 4 bar built in MAP sensor.
- Fully compatible with MSextra Software
- Fuel Table 16×16
- Ignition Table 16×16
- Connected to computer through USB.
- Supports CAN Bus
- Bluetooth connectivity.
- Can be connected as standalone or piggyback
- Dimensions  95mm x 76mm
Specifications
| Fuel table size | 16×16 |
| Fuel table resolution | 0.1% |
| rpm resolution | 1 rpm |
| Accel enrichment | Simple (TPS,MAP), Enhanced (wall-wetting) |
| Spark table size | 16×16 |
| Advance resolution (commanded) | 0.1 deg |
| Injector phasing | Bank/batch fire,Semi sequential or 4cyl sequential |
| Injector timing | Timed within crank pulses or timed for start, middle, end of injection pulse |
| Injector trim | Mapped trim table per cylinder when running sequential. |
| Spark trim | Not adjustable |
| EDIS | Y |
| Distributor spark | Y |
| Trigger return dizzy | Y |
| Simple wheel decoding | Y |
| Every tooth wheel decoding | Y* |
| Wasted spark | Y |
| Coil on plug | Y |
| Dual dizzy | Y |
| Cam / 2nd tach input | Y |
| Number of spark outputs | 6 |
| Rotary trailing | Y |
| HEI7, GMDIS | Y (with bypass control) |
| TFI | Y |
| Oddfire wheel decoder | Y |
| Oddfire dizzy | Y |
| Neon/420A | Y |
| 36-1+1 | Y |
| 36-2-2-2 | Y |
| Subaru 6/7 | Y |
| IAW Weber-Marelli | Y |
| Mitsubushi 6g72 | Y |
| 4/1 CAS | Y |
| 4G63 (Miata) | Y |
| 99-00 Miata | Y |
| Renix 44-2-2 | Y |
| Twin trigger (aka. dual spark) | Y |
| Suzuki Swift | Y |
| Suzuki Vitara | Y (Untested!) |
| Daihatsu 3 cyl | Y (Unproven) |
| Daihatsu 4cyl | Y (Untested!) |
| Rover K Series 36-1-1 | Y |
| Rover K Series 36-1-1-1-1 | Y |
| Rover K Series 36-2-2 | Y (Untested!) |
| Honda VTR1000 12-3 | Y |
| Chrysler 2.2/2.5 | Y |
| GM 7X native | Y |
| Nissan 360 tooth CAS | N/P> |
| Load methods | SD, AN, map/baro (load%), ITB |
| Load blending | Y |
| Load tables | 2 |
| Staged injection | Y |
| Over-run fuel cut | Y |
| Tachometer output | Y |
| Launch Control/flat shift | Y |
| Spark cut rev limit | Y |
| Dwell duty% | Y |
| Dwell battery correction | table of %ages |
| Cranking pulsewidth | table of %ages |
| Alternate cranking injection | Y |
| Specific cranking advance, dwell | Y |
| Fixed timing for setup | Y |
| Test mode | Pump, Inj, Coils, Idle |
| Closed loop idle control | Y |
| Boost control | Y (open or closed loop with PID control) |
| Nitrous control | Y (2 stage) |
| Knock sensor (software) | Y |
| Realtime barometric correction | Y |
| Water Injection | N |
| Table Switching | Y |
| Configurable outputs | Y |
| AFR target tables | Y |
| Dual fuel tables (per bank) | Y |
| Synchronous sensor sampling | Y |
| Built in tooth/trigger loggers | Y (tooth, trigger, composite, sync-errror) |
Halo
DE SEM 103 vr or hall sensor crankshaft support??
Mvg
both are supported.
Hello,can i use 60-2 trigger wheel?
Yes, sure.
I would like to know if Sem103 box more in stock coming soon? regards Jani
Use the new device sem302 and choose the config same as sem103.
Are these products still available?
Yes, SEM302 is the replacement.