Link Plug-In G4X ECU

The Hybrid Racing Link Plug-In G4X ECU offers a clean solution for upgrading your Honda or Acura K-Series engine's electronic control unit. Designed as a true plug-in, it installs directly into the factory ECU enclosure, preserving the OEM connector and eliminating the need for complex wiring modifications. This ECU is compatible with K20A, K20A2, K20A3, K24A1, and D17A1 engines, making it ideal for models such as the RSX, EP3 Civic Si, EM2/ES1 Civics, and K-swapped vehicles using 02-04 RSX wiring. This latest G4X ECU from Link boasts an integrated 7-bar MAP sensor, a powerful processor, and robust logging features, suitable for everything from mild street modifications to high-performance turbo builds. It provides advanced tuning capabilities including sequential fuel injection, accurate ignition control, VTEC and VTC management, boost by gear, launch control, traction control, and CAN communications. The unit is sold as a board only, intended to be used with your existing ECU case to maintain a factory appearance. Key features include up to 6D fuel and ignition mapping, closed-loop cam control for up to four cams, and 512MB of onboard data logging memory. It supports sequential, semi, and staged injection modes, as well as multiple boost targets, gear, speed, and throttle-referenced control, and knock control with per-cylinder detection. It is essential to verify that your vehicle's ECU connector matches the header shown in the product images before purchase. A CANJST4 cable (101-0198) is required for CAN device connection.