Engine performance, fault code diagnosis utilizing the most up to date scan tools with bi-directional capabilities (Snap on, iscan 2 wt, Gscan 2), for engine sensor/component range testing with live data stream and graphing multimeter. Key programming, module re-learn, system reset and programming features offered for all vehicles. Oscilloscope used to observe glitches/sensor waveform comparison to factory specific waveform in ignition primary and/or secondary for intermittent ignition misfire diagnosis.