• SM3+ PNP

Coming soon!

M50early-M50late-M50TU-M52 BMW Platforms

XU-TU 16V PSA Platforms

The SM3+ Plug&Play’s are mounted and wired in a OEM look casing and loaded with an initial startable base setup.

 Please double check the correct unit/engine and/or installed wiring loom before ordering!

M20-M30 platforms > stock TPS-switch needs to be changed to TPS-sensor

SM3+ features: 

  • Full sequential engine management system up to 6 Cylinders
  • Gold plated PCB for best signal conditions
  • 6x ignition full-sequential outputs, up to 12 in wasted spark firing
  • 6x fuel full-sequential outputs, up to 12 in batched firing
  • 3D 16x16 resolution fuel&Ignition software expandable to 16X32
  • Supports Smart & passive coils
  • Supports MAP, MAF, AlphaN & ITB engine loads
  • Individual fuel and spark trim
  • Closed loop idle
  • Closed loop mixture control
  • Closed loop Auto-tune function
  •  2 automatic trigger level detection inputs (VR-Hall or Optical supported)
  • VR, Hall, or optical sensors support
  • EGT K-type controller built-in
  • Double software adjustable knock controller built-in
  • USB FTDI controller built-in
  • Lambda LSU4.9 controller built-in
  • Onboard 1Gb dataloging and real time clock(RTC)

More user-programmable inputs and outputs over the MegaSquirt2 based boards:

  • Dual fuel 
  • Flex fuel
  • Injector staging
  • Dual Boost control
  • Custom PWM/On-Off outputs
  • Table switching
  • VSS/traction 
  • VTT control
  • Water/nitrous control
  • Limp mode
  • Shift-Cut
  • ALS
  • Launch control
  • 16x16 resolution VE&Ignition software expandable to 16X32
  • Hall&VR sensor support
  • 2&3 wire PWM idle valve support
  • CAN-bus
  • Tunerstudio free software
  • All Power stages AEC-q100/ automotive grade electronics!

Included products:

  • Molex connectors with crimp terminals
  • User Manual
  • Stickers & goodies
  • 1.5m USB cable

All ECU’s are build to order and fully tested before shipping out within 48hours.

New orders will ship-out with UNCUT case, due to a changement in German car TUV  the ECU has to be fully stock looking.

Can be easily cut by customer if needed

USB Driver
SM3+ PNP ECU User Manual Kperformance m20-m30-m40-s38
M4x PnP Base Map
M2x PnP Base Map

Write a review

Please login or register to review


  • Product Code: SM3+ PNP
  • Reward Points: 5
  • Availability: 20
  • 649.00€

  • Ex Tax: 536.36€
  • Price in reward points: 549

Available Options

Related Products

Universal TPS Sensor

Universal TPS Sensor

Throttle position sensor kit is suitable for use on throttle bodies with a clockwise rotation.&..

44.17€ Ex Tax: 36.50€

TPS Adapter (BMW,Miata)

TPS Adapter (BMW,Miata)

This 3d-printed adapter makes it possible to use our universal TPS sensor on your BMW,Mazda or older..

14.99€ Ex Tax: 12.39€

Tiny Analog Acceleration Sensor

Tiny Analog Acceleration Sensor

The Tiny Analog Acceleration Sensor is an 2 axis +-3G accelerometer, with 2x 5Vanalog outputs. It fe..

39.99€ Ex Tax: 33.05€

Tags: Megasquirt SM3+ PnP ECU, Engine Control Unit, Plug and Play, Automotive Electronics, Engine Management, Performance Tuning, ECU Upgrade, Vehicle Performance,