MS3Pro Mini by AMP EFI, the sleek and compact addition to our MS3Pro Wire-In ECU product line. This new ECU is designed to fit in the palm of your hand! Tailored for engines with up to eight cylinders, it boasts the same high-quality features as its larger counterpart, the MS3Pro EVO, including eight saturated injectors, four spark drivers, an on-board 4-Bar MAP sensor, barometric pressure sensor, and on-board SD card datalogging – all at approximately half the price of the Evo!
The MS3Pro Mini by AMP EFI is engineered to effortlessly support a diverse range of engines straight out of the box. Whether running sequential fuel and ignition on engines with up to four cylinders, sequential fuel with wasted spark on six or eight-cylinder engines, or powering a 2-rotor Wankel with separate leading and trailing ignition outputs, this versatile ECU is up to the task.
MS3Pro Mini Requires MS Firmware v1.6.0 or later and TunerStudio v3.2.0 or later.
What is in the box?
MS3Pro-MINI ECU with Harness Package
MS3Pro Mini Standalone EFI Controller
8ft. Flying Lead Harness
USB FTDI Serial USB Adapter
M8 Tuning Cable
TunerStudio Registration Code
MS3Pro-MINI ECU ONLY
MS3Pro Mini Standalone EFI Controller
TunerStudio Registration Code
NO accessories (Tuning Cable, Serial USB Adapter, Wiring Harness and/or Connector, etc.) included with ECU-ONLY purchases!
The MS3Pro MINI is ideally suited to popular engines such as:
Honda B-, K-, and F-series
Mazda B6 and BP series, including VVT
Mazda MZR / Ford Duratec
Toyota 1JZ/2JZ
BMW M20/30/50
1/2/3/4 cylinder engines w/ distributor, wasted spark, or coil per plug ignition
6/8 cylinder engines w/ distributor or wasted spark ignition
The TunerStudio software (v3.2.0 or higher required, license included with purchase!) offers an intuitive tuning experience suitable for both professionals and enthusiasts. It includes self-learning and self-tuning fuel table strategies, streamlining the tuning process.
The MS3Pro Mini offers more capabilities than the AMP’d MicroSquirt, all at a comparable investment. Unlock a host of features and functionalities, making it a superior choice. Plus, upgrading is a breeze, ensuring you stay ahead with ease!
MS3Pro Mini by AMP EFI Configurable Inputs/ Outputs:
8 Outputs for High Impedance Injectors (Unused Injectors can be repurposed as additional High-Current or PWM Outputs for General Purpose use!)
4 Logic Level Spark Outputs
1 dedicated Fuel Pump Relay/Controller Output
1 General Purpose PWM Output (Ex: Idle Control)
2 Conditioned Inputs for Cam/Crank Sensors (compatible w/ VR and Hall Effect)
3 Digital Inputs, 2 are capable of high frequency input (Ex. Speed Sensor)
4 General Purpose Analog Inputs
Onboard 1 Bar Barometric Sensor
Onboard 4 Bar MAP Pressure Sensors
Dedicated Inputs for CLT, MAT, and TPS Sensors
CAN and RS232 Connectivity
MS3Pro Mini by AMP EFI Features:
Up to 8 Sequential Saturated Fuel Injector Outputs
Use with High Impendence Fuel injectors
Any unused Injector Outputs can be used as High Current Digital or PWM Outputs
Up to 4 Sequential or 8 Batch-fire Logic Level Ignition Outputs
4/3/2/1 Cylinder Sequential Spark
8/6 Cylinder Wasted Spark
Supports single or dual coil distributor, wasted spark, and coil per plug
NOTE: AXM-130 Module is REQUIRED to control Ford TFI and/or MSD CDI ignition modules!
VVT Control
Open loop VVT control for 2-position camshaft
Closed loop control for fully variable camshaft
Idle Control – Multiple open & closed loop strategies
Simple On/Off Idle Valve
PWM 2 or 3 wire valves
E85 flex fuel sensor input
Extremely configurable for excellent performance and drivability regardless of fuel gasoline versus ethanol content.
Compatible with easy to find GM flex fuel sensor
Configurable flex blend curve allows blending of fuel tables, spark advance tables, afr target tables, alternate start and warmup settings, boost and overboost tables, and acceleration enrichment settings based on the exact concentration of ethanol in fuel
Compatible with YOUR wideband O2 controller
You choose the wideband controller you want without being locked down. From cost effective to full lab grade capability
Boost Control – Multiple open & closed loop strategies
Table based open loop (DC solenoid control)
Table based closed loop (Target specific boost pressures by load/rpm)
Switchable boost tables for high/low boost options at the flip of a switch
Boost by Gear
Boost by Speed
Internal SDCard high-speed data logging
No need for external datalogger!
8GB standard memory. Easily expandable to 16GB
Real time clock calendar system for time and date stamped datalogs
Up to 28 channels at 100hz
No need to remove SD-Card to pull logs, pull them straight across the serial/USB cable to your laptop
Nitrous control strategies
2 channels of configurable staged or progressive control
Supports wet or dry nitrous systems
Add fuel, pull timing, etc.
Three-step rev limiter with flat shift
Burnout Limiter
Launch Limiter
Redline Limiter
Line lock output
Flat Shift allows for No-Lift Shifting (holds RPM between shifts)
Trans Brake and Bump Box Control
Advanced Launch Control strategies
Digital switch based arming
Wheel speed based launch arming for rolling starts
Configurable timing retard after launch
Pit Lane Limiter
Speed limiter for pit lane, reduces engine power by spark retard/cut or fuel cut
Can limit based on VSS or RPM if no VSS input is available
Solenoid output control for air shifter/drag application
Automatic shift point mode
Configurable per gear delay
Water and Methanol Injection
Configurable to use a variety of water/meth pumps
Table based injection allows for variable water/meth injection based on load and rpm
Low fluid level detection safety measures
Traction Control – Multiple Strategies
Perfect Run (VSS over time)
Perfect Run RPM (Slew Control for classes where VSS is not allowed)
VSS % slip (compares front to rear or driveshaft speed)
Configurable Responses
Timing retard/cut
Fuel Adder
Nitrous Cut
Boost Reduction
VE based tuning
No Static PW fuel tables with stacks and stacks of ‘correction tables’ required.
Very simple/logical approach to calibration minimizes tuning time required!
Speed Density, Alpha-N, MAF based tuning & blended algorithms
ITB Mode – blends SD and Alpha-N for excellent drivability with naturally aspirated, multiple throttle applications!
Custom blended strategies supported, mix/blend strategies to suit any engine
Fuel and spark advance algorithms can be set set independently
2D or 3D Table Views
The tuner can toggle between 2D or 3D table views with a single click
Individual cylinder fuel & spark trim tables
Per-cylinder, table based corrections for both ignition timing and fueling needs on a cylinder by cylinder basis. Correct for manifold airflow differences and fine tune each cylinder to perfection!
O2 sensors can be assigned per cylinder, allowing for perfect tuning and closed loop correction on a per cylinder basis
On-board Pullups
Selectable on board pullups for hall effect crank, cam, and vehicle speed sensors
Selectable on board shunts for VR crank and cam sensors
Selectable on board pullup for tachometer output
Table Switching
2 sets of user configurable tables for fuel, spark advance, and boost tables
Dual Fuel Support
Beyond table switching, adds control of 2nd fuel system (pump and injectors), and adds 2nd settings for injector characterization; fuel stoichiometric point; priming, warmup, cranking, and afterstart settings; alternate acceleration enrichment tables; boost tables; and overboost protection settings.
Generic Wheel Decoder allows for support of nearly any standard trigger/aftermarket trigger pattern. 60-2, 36-1, 8-1, 4-1, pretty much anything!
Supports 50+ specialty OEM and aftermarket ignition systems using factory cam/crank wheels and sensors, including built-in switches for pull-up resistors for use with Hall effect sensors!
Chrysler 420A/Neon
Chrysler New Hemi 36-2+2
Dodge Viper V10
Ford EDIS
Ford Zetec VCT
GM 7x
GM LS 24x
GM LS 58x
GM OptiSpark
Harley Davidson 32-2 V-Twin (uses MAP for phase detection)
Honda TSX/D17
Honda KA24A2
Honda RC51/S2000
Mazda Miata NA
Mazda Miata NB1 and NB2 (VVT)
Mitusbishi 6G72
Mitsubishi 4G63
Nissan SR20
Nissan RB25
Nissan VQ35DE
Nissan QR25DE
Subaru 6/7
Subaru 36-2-2-2
Toyota/Lexus 2JZ VVTi
Yamaha YZF1000
Not a complete list — Many more supported trigger wheels
Support for oddfire and evenfire engines
Capable of controlling evenfire, oddfire, piston, rotary, and even radial engines
Fuel Only Mode
Disables ignition output features for control of fuel injection only
Rally style turbo anti-lag with rotational idle
Long Term Fuel Trim
OE Style automatic fuel trim to allow for changes in engine over time
High Power Time Enrichment
Allows for richer mixture after extended time in high power
Helps control cylinder and piston temperatures
Fully user configurable
Multiple Acceleration Enrichment Strategies
Basic time based and accel pump style AE
Advanced wall wetting model based (X-Tau and EAE) acceleration enrichment options
Staged Injection Control
Seamless transition to 2nd stage injectors for high power applications
Multiple user configurable strategies
Sequential shift spark cut
Fuel Pump Control
“On/off” control of single or multiple stage pumps
PWM control of OE variable speed/pressure pumps
Multiple Engine Protection and fault mode strategies
Check Engine Light activation (solid and flash codes supported)
Low Oil Pressure Warning System (illuminates CEL)
Limp Home Mode
3 LED indicators for visual diagnostics
12V main power
5V ref
VCC (internal processor power)
Set low/high limits for all major sensors and activate engine limp mode or shut down responses
Water/Meth Injection Low fluid Level
IAT
CLT
TPS
MAP
Battery Voltage
Wideband O2 / AFR Safety
Sync Loss
EGT
Flex Fuel
Intelligent Knock Detection and Correction (see relevant topic above for more info)
Spare I/O for any standard/custom I/O needs
Configurable On/Off (digital) and PWM outputs
Control any relay controlled device or solenoid
Fan Control
Intercooler cooling spray (CO2/etc)
Torque Converter (TCC) Lockup
Auxiliary Fuel Pump
Multipurpose/Generic Closed Loop Control Outputs
Spare Analog Inputs for external sensors
Supports standard automotive temperature or pressure sensors
Air Conditioner Control with feed-forward Idle-Up
Proactively increases idle vale duty cycle (PWM valves) or number of steps (stepper valves) before activating A/C compressor
Automatic compressor shutoff at programmable throttle position or RPM thresholds
Automatic cooling fan activation with A/C, user configurable
Cooling Fan Control
Programmable fan on and off activation points
Can be configured to run fan with engine running only, or when engine is running and not running
Feed-forward idle up for use with large, high demand fans
Configurable fan deactivation based on TPS or VSS
Alternator Field Control/Voltage Regulation
Multiple open and closed loop strategies
Configurable voltage and temperature monitoring
Separate target voltages for afterstart, normal operation, over run, and WOT
Warning lamp output if voltage is above or below target
Comprehensive Test Modes
Test all outputs for proper functionality and verify wiring before starting the engine
Controls all fuel injector outputs, ignition outputs, idle valve, and general purpose outputs
Outputs can be tested for on & off or PWM pulse functionality
Injector and spark disable mode, allows checking for suspected problematic cylinder by electronically preventing combustion event
CAN Support for I/O expansion – virtually limitless I/O capability!
Up to 16 EGT inputs via CAN Expansion
Add fuel/engine shutdown capable
CAN Support for 3rd party dash devices
Currently offers support for RacePak, AIM, Race Technology, Traqmate, and Race Capture.
Pre-defined “simple” as well as fully configurable CAN broadcasting modes
Standard 11-bit message headers
Allows for simple integration with any 3rd party devices
Compact, Efficient & Robust Design
Small form factor
Circuitry optimized for efficiency, low power usage, and no generation of heat
Redundant signal ground wiring
No Dark Current!
No power draw when system is off. MS3-Pro will not discharge your expensive race battery when your vehicle is in storage.
Field Upgradeable Firmware – enable newly added features with a simple firmware update!
Firmware is constantly under development and updates are easy to load via simple software interface.
The MS3Pro ECU’s feature user-replaceable fuses that protect against voltage spikes and other abuse. To replace these fuses, use a needle nose pliers to pull the fuse out of its holder, and then push in the replacement fuse by hand.
This is the 100...
IMPORTANT PRODUCT UPDATE** MS3Pro Gen1 has been discontinued and superseded by MS3Pro EVO effective May 1, 2017. This product page, including documentation, downloads & product FAQ tabs below, remains active for archive purposes.
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