Description
The Syvecs S7D Plug-in ECU for the Audi TT RS and RS3 Mk3 is a fully integrated engine management solution designed specifically for vehicles equipped with the 2.5 TFSI DAZA and DNWA engines.
This ECU is supplied as a direct plug-in replacement that interfaces with the factory wiring and vehicle systems without the need for loom modification or permanent changes. Once installed, the S7D ECU assumes full engine control while retaining essential OEM functionality, allowing the vehicle to operate seamlessly as a road car or motorsport platform.
The system is designed for applications where factory ECUs or flash-based solutions become restrictive, providing full authority over engine operation with professional-grade control, safety, and scalability.
Supported Platforms
-
Audi TT RS (Mk3 / 8S)
-
Audi RS3 (Mk3 / 8V)
Engine codes supported:
-
DAZA
-
DNWA
PLEASE SPECIFY ENGINE CODE AT ORDER
Compatibility is dependent on engine variant, vehicle configuration, and ECU specification.
Key Advantages
-
Direct plug-in ECU replacement with no cutting or splicing of the factory loom
-
Retention of OEM vehicle systems including dash communication, CAN networks, diagnostics, and drivability features
-
Designed specifically around the 2.5 TFSI five-cylinder architecture
-
Motorsport-grade ECU control with OEM-level integration
-
Scalable solution suitable for road, track, and competition use
Advanced Engine and Vehicle Control Capability
Depending on calibration and vehicle configuration, the S7D Plug-in ECU enables:
-
Fully configurable fuel, ignition, boost, and torque control
-
Support for flex-fuel and ethanol-based strategies
-
Advanced load-based and torque-based modelling
-
Custom CAN integration with vehicle and drivetrain systems
-
Support for high-flow injectors and upgraded fuel systems
-
Comprehensive engine protection and failsafe strategies
-
Launch control, flat-shift, and motorsport functions
-
High-speed data logging and professional diagnostics
All calibration is carried out using Syvecs SCal software, providing tuners and engineers with full visibility and control over engine strategy, protection logic, and performance behaviour.
Designed for High-Performance 2.5 TFSI Builds
The DAZA and DNWA engines are capable of extremely high power levels but are increasingly limited by factory ECU constraints. The Syvecs S7D Plug-in ECU removes these restrictions entirely, making it suitable for:
-
High-power street vehicles
-
Big-turbo and upgraded turbocharger builds
-
Ethanol and multi-fuel applications
-
Track, time-attack, and motorsport use
-
Advanced development and engineering projects
All while maintaining OEM refinement and system integration where required.
Based on the Syvecs S7D ECU, the Plug in ECU inherits all of its features but we are particularly proud of the following:
- Live Tuning of every aspect of the engine’s calibration, including signals sent to the DSG.
- Full Direct Injection and Pump Control.
- 10 Injector Support with 5 Port Injectors.
- Ability to select desired engine map, boost level, traction and launch control levels through steering wheel buttons.
- Fully adjustable Launch control with Anti-lag strategies and Ramp in Maps.
- Full Variable Valve Timing control.
- Flex Fuel control.
- Cruise Control.
- Fully functional with every other control module on the car.
- Closed loop Dual Lambda Control.
- Fully adjustable closed loop boost control with launch level adjustments and trims for turbo speed, air charge, engine coolant temp, exhaust gas temperatures etc.
- Monitor and trimming of exhaust gas temperatures.
- Flat Shift.
- Built in data logging using a market leading analysis software of up to 8 hours, with data rates at up to 1000hz.
- Rolling Antilag / Pit lane limiter strategies, great for building boost on a roll.
- Anti-theft and valet modes.
- Super fast connection via RJ45 Ethernet port for live tuning anywhere in the world or even remotely if on track and connected to a wireless unit.
- Adjustable traction control strategies based on lateral g and individual wheel speed monitoring.
- 4 programmable target slip maps. An immediate torque reduction can be applied by the ECU via ignition retard or a fuel cut.
- Configurable Engine Safety Trips on all important parameters such as oil temperature and oil pressure.
- Fuel pump control of both main, and sub pumps, as well as relative fuel pressure monitoring and limiting in the event of fuel pressure dropping on boost.
- 4 different Pedal to Throttle Angle maps with multipliers for different parameters e.g. speed. Again adjustable via steering wheel buttons.
- Configurable individual cylinder closed loop knock control, to suit any cylinder modification with adjustments to frequency, windows for listening and gains for each cylinder. Ability to trigger full cylinder shutdown in severe knock conditions.
- Change torque reduction levels on shifts. Essential for very high power applications where the maximum reduction available via the stock ECU is not enough to prevent damage to components.
- Ability to change Torque ramp in after launch.
- Change throttle blip requests to match your torque band. Especially useful on oversized turbo installations.
- Run up to 7bar map sensors.
- Control high or low impendence injectors.
- Control up to 4 additional injectors for high power installations where staged injection may be required.
- Change injector dead times based on voltage levels for proper control.
- Change injector end angle to ensure injection point is properly calibrated.
- Ability to fit any type of external sensor to monitor and trigger safety trips from anything such as crank case pressure to damper position.
- Ability to use any size DBW throttle body e.g. Chevrolet LS7.
- Wet and Dry – wet and dry nitrous control with ability to drive solenoids directly and control n20 heaters via pressure monitoring.
- Ability to control any external vehicle features based on sensor inputs e.g. Adjustable rear wing linked to G force or exhaust control valves.
- Connect any race series dash or even one of our partners’ Touchscreen CANBUS adjustment /display units.
- View any input live with built in scope up to 1000hz.
- And much, much more!
FAQ's and Help
Q) Do I control the OEM Intake Flaps?
A) Yes. This is set in Output Functions – Fan7 (Intake Flap). It's controlled Based on RPM vs Manifold Pressure.
Q) Do I control the OEM Exhaust Valves?
A) Yes. This is set in Output Functions – Fan8 (Exhaust Flap Control), Its controlled Based on Load vs DriveMode so you can open only in Dynamics mode.
Q) Do I control the Exhaust Cam Lift Solenoids?
A) Yes. This is adjustable in Output Function – Variable Cam Control.
Q) How is the OEM Coolant Switch Pump Controlled?
A) This is found in Output Functions – Fan2 (Coolant Switch Pump). It's controlled based on Engine speed and Coolant Temp.
Q) How is the Electronic Blow of Valve controlled?
A) This is found in Output Functions – Fan5 (Turbo Recirc). It's controlled via Throttle Angle, Manifold Presure and RPM.
Q) Can I install different in tank pump?
A) Yes. The Syvecs communicates with the OEM Fuel Pump Ecu to allow PWM control of the pump so it can be adjusted to suit your new pump. This is found in Output Function – Basic PWM 2 – (Intake Fuel Pump).
Q) Which of the original features will now not work?
A) All of the features will work.
Q) Can I use the OBD port still to log, read codes and clear them on other ecus on the car like ABS?
A) Yes. Via the use on VagCom.
All this on top of the usual S7 Plus features. (http://www.syvecs.co.uk/products/engine-management-system/s7plus/)
See the Kit in action below
Order now from your nearest Syvecs Authorised Dealership.
