Fuel injector testing method, device and equipment and storage medium

The embodiment of the invention provides a fuel injector testing method, device and equipment and a storage medium, and the method comprises the steps that in response to a fuel injector testing signal, an engine is controlled to start; after it is determined that the rail pressure of the fuel injector is within the preset range, the fuel injector in the engine is controlled to conduct injection within the preset time period according to the preset injection frequency and the preset fuel injection quantity; the actual injection frequency and the actual fuel injection quantity of the fuel injector are obtained; and according to the preset injection times, the preset fuel injection quantity, the actual injection times and the actual fuel injection quantity, whether the fuel injector is abnormal or not is judged. The fuel injector testing signal can be directly responded, the fuel injector is controlled to inject fuel, whether the fuel injector is abnormal or not can be judged according to the fuel injection fre