Fuel Trim Mastery
Learn how to interpret Short Term (STFT) and Long Term (LTFT) fuel trims to find vacuum leaks and fueling issues before they trigger a P0171 code.
Read Full GuideCAN Bus Architecture
An introduction to the Controller Area Network (CAN) bus and how OBDAssistant fingerprints your vehicle's specific baud rate and protocol.
Read Full GuideThe Sentinel Engine
Understanding the neural network layers behind our plain-English diagnostic insights and how we verify mechanical health with 94%+ accuracy.
White PaperOptimal Sampling Rates
Why refresh rate matters in diagnostics. A guide to why OBDAssistant prioritizes high-frequency polling on supported ELM327 adapters.
Read Guide