: It uses a mechanical flap valve to measure airflow. This signal, combined with coolant temperature and throttle position, allows the ECU to determine the fuel delivery time for two banks of injectors. Common Faults :
: Thermal cycling often causes cracks in the solder joints of the three large power transistors inside the ECU, leading to intermittent failures. Download lucas 4cu fuel injection rar
: Modern alternatives include remanufactured units from Tornado Systems that feature upgraded calibrations and improved reliability over the original factory boards. Lucas 4CU ECU - Triumph Wedge Owners Association : It uses a mechanical flap valve to measure airflow
