Description

WRX 0205 MS3Pro PnP Plug and Play for 2002-2005 (USDM Only!) Subaru Impreza WRX with manual transmission
Does not fit STi models – these used different electronics. This is for the base-model WRX.

This Plug and Play ECU is incredibly quick and easy to install. Many users average about one hour for the complete installation.  

WRX 0205 MS3Pro PnP #SW0205 Features:

• Fully Plug and Play Installation – No wiring required for basic functionality
  •  Average install time is under 1 hour!
• Base map is pre-loaded to help your engine start on the first turn of the key
• Real time tuning and data logging with a laptop connection
• 8 GB internal data logging with built in SD card
• Supports most aftermarket wideband sensors

Fully Tunable Engine Control!

• 16×16 Fuel Tables allow high resolution tuning
• 16×16 Ignition Tables
• Multiple Acceleration enrichment strategies
• Closed Loop Idle Speed Control
• Air Conditioner Control
• 4 sequential fuel injector channels with individual trim tables
• Onboard peak and hold drivers support both high and low impedance injectors – No external ballast resistor is needed!
• Allows removal of stock mass air flow sensor
• Closed loop boost control – includes boost by gear or ground speed

Advanced Feature Set (Included!)

• 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
• AVCS (Variable valve timing) support for engine swaps (uses extra wires on the expansion connector)
• Multiple traction control strategies
• Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
• Real time barometric correction
• Internal 4-bar MAP sensor reads up to 44PSI of boost
• Overboost protection
• Rally style anti lag
• Water injection control – on/off or variable
• Knock sensor input with adjustable sensitivity, crank angle windowing, and more
• Table switching input. Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.
  Input for flex fuel sensor – switch between E85 and gasoline on the fly!
• CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Additional Sensors…..the possibilities are limitless!

What you get in the box:

• WRX 0205 MS3Pro PnP ECU
• MSPNP 6′ RS232 serial tuning cable (USB adapter sold separately)
• Tuning Software and Documentation on USB memory stick
• 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
• Four Screws for ECU mounting
• Registered version of TunerStudio and MegaLog viewer included

Products FAQ

Where is this product assembled?

• This product is assembled in Suwanee, Georgia, USA

Is this all that I need to get started tuning my WRX?

• This is meant to be a complete system, including the cables needed to connect to your laptop. However, there are several other things you may wish to add to use this unit to its full potential.
  • If you are tuning it yourself, a wideband O2 sensor system is a must have for adjusting the fuel.
  • You can upgrade the boost control with our boost control solenoid package.

Does this unit support AVCS motor swaps?

• Yes. Use Digital Frequency In 3 on the options port for the second cam input. You can use PWM2 and one of the high current outputs for the cam control solenoids. The high current output will need a 1N4001 diode across the solenoid, banded end to the 12 volt supply.