VZ Commodore ECU Repair  Introduction The Holden VZ Commodore's ECU often fails. Common issues include no-start, misfiring, or fuel gauge errors. Here are some symptom and repair options. Common ECU Problems VZ V6 ECUs (E55) suffer from heat-related failures. Symptoms include powertrain errors, low fuel warnings and Service Vehicle soon warning. Internal faulty connections cause injector issues. Diagnosing ECU Issues Check for error codes like P0201-P0206. Use a scan tool to detect communication failures. Inspect wiring and battery first. Replacement…