The rate of transportation accidents is still a major challenge in many countries. Many factors can cause transportation accidents, especially problems with the vehicle's internal system. Fuel Injection-based vehicles have a centralized electronic system through the ECU as control. The outstanding Engine Diagnostic Tool has several weaknesses, including high price, not plug and play, has limited system support. It is necessary to develop a Prototype Engine diagnostic tool that is easy to use, has an overall carrying capacity, and can be easily applied by middle-class vehicle repair shops. So, the researchers researched the Internet of Things (IoT)-Based Wireless Engine Diagnostic Tool prototype using a Raspberry Pi. This study aims to (1) produce a Prototype of the Wireless Engine Diagnostic Tool Based on the Internet of Things (IoT) Using Raspberry Pi and test the functionality of the Prototype Wireless Engine Diagnostic Tool with Raspberry Pi Technology. The research method used is the Research and Development method. The research aims to produce specific products. The product produced and tested for functionality in this research is a Wireless Engine Diagnostic Tool Based on the Internet of Things (IoT) Using Raspberry Pi. The results show that the function runs 100% on the ECT, IAT, TPS, RPM meter, Oxygen Sensor, and Vehicle Speed Sensor tests. © Published under licence by IOP Publishing Ltd.
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