• MAF Less System
  By using a speed/density based control strategy, the need for the Mass Air Flow meter, and the associated limitations and potential problems can be eliminated. The ECU can be configured to operate with either the OEM MAP sensor or any commercially available 0-5V sensor.

• Real Time Live Mapping
  All SimTek ECUs have real time live mapping, providing your mapper with the information and ability to get the most from your engine. There is no need to stop the engine whilst changes are made, and there is no limit to the number of changes that can be made. Your mapper can see the effect of changes instantly.

• Plug ‘n’ Play
  All the SimTek ECUs have no requirement for ‘adapter looms’ or wiring modifications, and fits into the OEM case, providing for a neat and reliable installation. This also allows for the vehicle to be easily returned to the OEM ECU should the vehicle be sold.

• Advanced Wastegate Control
  The wastegate control system incorporates features commonly found on high end aftermarket boost controllers, thus eliminating the need for this additional expense. This includes engine speed and throttle angle 3D closed loop control, along with gear dependant corrections.

• Multi-Maps
  ‘Multi-Maps’ enables you to effortlessly change between maps as your requirements demand. You can have a map setup for ‘normal driving’, which is optimised for fuel economy and then change to ‘track day’, which is optimised for performance. The choice of what your Multi-Maps do is down to you and your mapper. The Multi-Maps allow changes in Fuel, Ignition & Boost. They are ‘full maps’ not just a single modification, to a common base map. You can choose how you select your desired map, either using an add-on selector switch (allowing the maps to be changed ‘on the fly’ whilst driving) or by using the throttle pedal position at switch on.

• Knock Warning
  The ECU uses the OEM Knock Sensor to listen for ‘Knock’. This is then fed to a Digital Signal Processor for analysis. If the DSP decides that knock is detected, the Check Engine Light will be flashed to give the driver warning that engine damage could be occurring. In an effort to avoid damage, you then have the option of switching to the alternate calibration (map) whilst the cause of the knock is identified. This is often down to a low quality tank of fuel.

• Closed Loop Fuel Control
  The ECU uses the OEM narrowband lambda sensor to give optimal fuel control in the idle / light throttle / cruise regions. The ECU checks that the signals from the sensor are valid, and will switch to Open-Loop if it believes the sensor to have failed. As an option, it is possible to connect a true wideband sensor.

• OEM Driveability
  The use of 24 x 24 fuel and ignition maps, gives unparalleled resolution and results in excellent road manners for light throttle driving. Advanced acceleration enrichment features give crisp throttle response even when using large injector configurations. Comprehensive starting strategies which are replicated from the OEM ECU, ensure ’first turn’ starting in all conditions.

• Anti Lag System
  As a cost option, the ECU can have ALS installed. Three ALS calibrations are available, allowing for ‘Jacked Open Throttle’ based systems as well as driver selected Hard / Soft modes. Air charge temperature is monitored by the ALS system to reduce the risk of engine damage due to high charge temperatures.

• Launch Control
  As part of the ALS cost option, the ECU has the ability to provide launch control to assist in ‘leaving the line’

• Gear Change Output (Shift Light)
  The ECU provides a ‘Shift Light’ output to indicate to the driver the optimum point to change gear. The point at which the output is activated is gear dependant.

• Multi Stage Engine Speed Limiter
  The ECU has a progressive engine speed limiter using a combination of fuel & ignition cuts. This provides full over speed protection, whilst not giving a sudden loss of power.

• Individual Cylinder Fuel & Ignition Trims
  The ECU allows for each cylinder to have it’s own fuel & ignition ‘trimmed’ to allow for small differences between cylinders. When combined with the Knock Sensor DSP, which can not only detect knock but can discriminate which cylinder is the cause. This permits the engine output to be balanced so that all cylinders are performing equally.

• Automatic Water Spray / Injection Control
  On vehicles equipped with an intercooler water spray or aftermarket water injection system, the ECU can take control of this to provide closed loop charge temperature correction. Trigger levels are determined based on engine speed, throttle angle, boost pressure and air charge temperature.

This is not a piggyback ECU or a replacement ECU
This software allows a true & clean remap of the standard engine management system

ProECU tools are EcuTek’s reprogramming software for turbo charged Subaru and Mitsubishi vehicles. This is the software that EcuTek and its partners use to produce all their performance ECU products. As well as designing & writing this software, EcuTek use their products everyday for performance tuning, so you can be sure that these tools have every feature required for fast & effective use.

Eleven ProECU Products are available, supporting various different Subaru and Mitsubishi ECU architectures.

Flash99 supports the 1999 and 2000 model years of Subaru cars.
Flash2002 supports the 2001 to 2004 model year of Impreza WRX and STI.
Flash2004 supports the range of Subaru drive-by-wire ECUs, as seen in the US STI.
FlashEVO supports the legendary Mitsubishi 5/6/7/8/9 range of vehicles.
FlashCAN Subaru supports the 2007 onwards model year of Subaru Impreza WRX and STI
FlashCAN Subaru Diesel supports the 2007 onwards model year of Subaru vehicles with the Flat Four Diesel engine
FlashCAN Mitsubishi EVO supports the 2008 onwards model year of Mitsubishi EVO X and Lancer Ralliart vehicles

Live mapping system for V1/2 Impreza 92-96. Also Legacy BC5 Single Turbo 91-95.

Key Features at a Glance:
•Factory drive quality out of the box.
•Comprehensive closed loop knock control.
•3D boost mapping – no boost controller required.
•Can be remapped to incorporate further modifications.
•Full OEM Diagnostic control codes.
•Standard cold start compensations.
•Closed loop narrowband lambda control (idle and light cruise).
•No additional harness.

The OEM JECS ECU is the most capable ECU you can use with your Version 1 or 2 Impreza or Series2 BC5 Legacy Turbo.
Consider the amount Subaru will have spent developing and testing it specifically for that model range and compare that to the likely budget of an aftermarket manufacturer.

Find another ECU with useful real world features such as closed loop knock control so comprehensive that it can retard ignition, add fuel and modify boost.

How many after market ECUS feature full active diagnostics and 3D boost mapping?

The only major disadvantage of the OEM JECS ECU was its inability to be reflashed. Thats where the ESL Live daughterboard comes in. It allows the numbers in the OEM ECU to be changed to control fuelling, ignition, boost, sensor and actuator swaps (MAF, MAP, turbo, injector, etc). ESL Live will grow with any future modifications you have planned. It is the complete solution for any engine specification.