Before searching for a download, you must know exactly what hardware you have. Most GAZ vehicles use Mikas (e.g., Mikas 11, 12) or Cummins (CM2220) controllers. Look at the physical sticker on the ECU housing under the hood. Choose Your Firmware Type
Look for versions labeled "Double-regime" (двухрежимка), which switch settings automatically when you toggle between petrol and gas. proshivki pod gaz skachat
Follow the software prompts to the new data. Do not disconnect the cable or turn off the ignition during this process. Before searching for a download, you must know