This plug-in ECU solution transforms your Lotus S1 with Rover series engine management. Choose between the EcuMaster Classic package with integrated lambda 4.2 sensor for reliable closed-loop fuelling, or the EcuMaster Black system featuring the advanced LSU 4.9 wideband sensor for precision tuning. Both kits deliver seamless integration without permanent modifications.
Adapter-only option available if you already have an ECU .
Please note adaptor-only versions are not supplied with the lambda connection; you will need the lambda link loom and sensor separately.
For vehicles fitted with legacy unipolar stepper motors, isolate the central 12V wire from the connector prior to installation. This mandatory preparation step is essential to avoid electrical damage of stepper motor.
