MaxxECU RACE GEN2 – Standalone Engine Management System

MaxxECU RACE GEN2 is the most advanced engine control unit in the MaxxECU lineup,
designed for demanding performance builds, motorsport applications, and complex engine configurations.
The GEN2 platform offers faster processing, expanded I/O capability, and support for modern sensors
and control strategies.

The RACE GEN2 ECU is well suited for custom engine builds, track cars, and competition vehicles where
precise control, reliability, and flexibility are required.

Electronic throttle control (DBW) is included as standard. When DBW is not required, the corresponding
outputs can be reassigned for other functions as either ground-switched or +12 V outputs.

Support for dual knock sensors allows advanced engine protection strategies with feedback control.
The ECU also supports CAN-based dashboards and Bluetooth connectivity for use with Android-based
display or logging devices.

Engine compatibility

• 2-stroke and 4-stroke engines with 1–12 cylinders
• Fully sequential fuel and ignition up to 8 cylinders
• Wasted spark operation up to 12 cylinders

MaxxECU RACE GEN2 – Inputs

• Intake Air Temperature (IAT)
• Coolant Temperature (CTS)
• Throttle Position Sensor (TPS)
• Wideband lambda input (Bosch LSU 4.9 / LSU 5.2)
• 2 × trigger inputs (VR / digital)
• 2 × additional temperature inputs
• 2 × knock sensor inputs
• 6 × additional 0–5 V analog inputs
• 4 × digital inputs (e.g. wheel speed, VR/digital)
• 8 × EGT inputs via dedicated connector (K-type, separate harness)

MaxxECU RACE GEN2 – Outputs

• 8 × peak & hold injector outputs (low or high impedance)
• 8 × ignition outputs (5 V logic for igniters or CDI systems)
• 9 × ground-switched general purpose outputs (GPO 1–8,10 / 2 A, GPO 9 / 5 A)
• 2 × +12 V switched outputs (e.g. BMW VANOS) (GPO 15–16 / 2 A)
• 4 × motor control outputs (e.g. electronic throttle, H-bridge) (GPO 11–14)

MaxxECU software is available as a free download from the manufacturer:

MaxxECU Downloads

Package contents

• 1 × MaxxECU RACE GEN2 ECU
• 1 × GEN2 RACE 1-connector wiring harness blank
• 1 × GEN2 RACE 2-connector wiring harness blank
• 1 × Bosch wideband lambda sensor (LSU 5.2)
• 1 × MaxxECU USB cable
• 1 × MAP hose with fittings
• 1 × Lambda connector kit
• 1 × Delphi GT150 12-pin female connector kit
• 1 × MaxxECU Bluetooth antenna
• Additional wiring
• MaxxECU stickers
• Quick guide (English)
• RACE GEN2 wiring diagram