It can help you identify whether the injector is good or not when you switch off the engine. It can work with any fuel pressure tester. ⭐ Mode “1”: single pulse mode. 6️⃣ After the test is completed, if it is necessary to repeat the test, press the “ Pulse ” key; if you want to change the pulse, press the “ Reset ” key, you can select the required mode at will, and then test the fuel injector again.