MaxxECU V1 Plugin ECU solution for Audi 5-cyl engine


Fast and easy installation

After only a few hours of installation time, you can unleash the powerful Audi 5-cyl engine to it's full potential


Get rid of the stock air flow meter

Remove the stock air flow meter and replace it with the built-in MaxxECU MAP-sensor


Audi 5-cyl engine

Audi's most famous engine with big horsepower potential, unleash it!




  • MaxxECU unit
  • Plugin adapter harness
  • USB cable for communication
  • Push-lock to barb (MAP-sensor connection)
  • Printed quick start guide
  • All items in a box

What’s in the Box – EXTRA

  • MaxxECU unit
  • Plugin adapter harness
  • USB cable for communication
  • MAP-sensor push-to-lock hose kit
  • Printed quick start guide
  • All items in a box
  • Bosch LSU 4.2 wideband oxygen sensor
  • LSU 4.2 connector
  • WBO (LSU) harness


Selected MaxxECU advantages

  • Built-in MAP-sensor (up to 43 psi / 3bar of boost pressure)
  • MDash/RealDash Android app connectivity
  • Superfast USB communication
  • High or low impedance injector support
  • No changes in original electronics
  • Direct access to up to 8 EGT-sensors

Selected vehicle features

  • Uses stock harness, easy installation
  • The air mass meter is removed
  • Controls idle valve, AC, tachometer and other instruments

Selected MaxxECU functions

  • Boost control
  • Launch control
  • Shift-cut
  • Lambda control
  • Boost level switching


  • Compatible with MaxxECU STREET, RACE, V1 and PRO.
  • Some features not available depending on used ECU
  • Technical documentation

Audi S2/RS2/S4/S6 (5-cyl AAN, ADU, ABY)

  • Target engines of MaxxECU V1

    • All 1-12 cylinder engines (4-stroke)
    • Up to 8 cylinders fully sequentially
    • Up to 12 cylinders in wasted spark

    MaxxECU V1 inputs

    • Intake air temperature sensor (IAT)
    • Coolant temperature sensor (CLT)
    • Throttle position sensor (TPS)
    • Lambda (WBO) sensor. Uses a sensor directly connected to the ECU without any additional electronics. Supports Bosch LSU 4.2 and 4.9
    • 2 trigger inputs. VR or digital. Automatic trigger level detection. The signals are processed by a completely separated processor for maximum performance and immunity against interference
    • 2 extra temperature sensors. Can be used as switches or to control additional functions
    • 2 extra 0-5V inputs. Can be used for additional sensors such as for measurement of fuel/oil pressure
    • 2 digital inputs used for example for speed sensors (VR / Hall) or switches
    • Built-in 400kPa MAP-sensor for up to 3bar/43PSI of boost
    • 8 inputs for EGT sensors. No extra electronics needed

    MaxxECU V1 outputs

    • 8 peak/hold injector outputs. 1-2 high or low impedance injectors per output. 8A per output
    • 8 ignition outputs. 5V signal to drive ignition modules, CDI units or coils
    • 8 outputs for extra features. Can be used to control virtually anything. Fuel pumps, idle control, boost solenoids, nitrous, shift lights, fans, warning lights, etc. GPO 1-7 (2A) GPO 8 (5A)

    MaxxECU V1 technical

    • CAN bus for expansion modules, OEM vehicle CAN, OBDII
    • USB communication for tuning with MTune
    • Bluetooth for connecting to mobile devices with MDash
    • 8MB memory for internal logging, up to 1000Hz
    • Supply voltage 8-22V
    • ARM Cortex-M3 120MHz main processor. Three extra processors to handle the triggers, injectors and EGT
    • Resolution on ignition: 0.1 degrees
    • Resolution on injectors: 0.001 ms
    • Updates the fuel and ignition calculations 2000 times per second
    • The fastest PC communication on the market
    • 50Hz sampling rate on all EGT inputs
    • 1000Hz sampling rate on all analog inputs
    • Weight: 528g (without mounting brackets)
    • 140x106x46mm (excluding protruding connectors and mounting brackets)
    • Aluminium casing

    MaxxECU V1 revision updates

    Rev 9

    • Added support for Bosch LSU 4.9 WBO sensor

    Rev 7

    • Twice as much logging memory and higher logging speed (100Hz)
    • DIN 1/2 can be used with a VR sensor directly

    Rev 6

    • Injector outputs can power up to 8A per output (enables dual 2400cc Deka injectors per output).
    • Internal wideband lambda can measure even richer fuel mixtures, below lambda 0.65 (for methanol engines)

    Rev 4

    • Selectable voltage on the TACH output (5 or 12V)
    • GPO7 can be used as digital input DIN3