657 Copyright by Goodheart-Willcox Co., Inc. Aft er studying this chapter, you will be able to: • Apply advanced methods to troubleshoot problems caused by electrical/electronic devices and mechanical failures. • Use a scan tool to read datastream values. • Use an oscilloscope or a hand-held scope to perform advanced diagnostics. • Evaluate sensor, actuator, and ECU output waveforms. • Evaluate ignition system and fuel injector system waveforms. • Use an exhaust gas analyzer to read the contents of a vehicle’s exhaust gases. • Evaluate exhaust gas analyzer readings. acceleration test Bosch peak-and-hold injector waveform breakout box calibration calibration gas coil oscillations section cranking balance test cylinder balance test datastream values digital thermometer display pattern dwell section dynamometer dyno electromagnetic interference (EMI) exhaust gas analyzer fi ring line fi ring section fi ve-gas exhaust analyzer fl ight record test four-gas exhaust analyzer Hall-eff ect sensor test ignition coil output test intermediate section lean misfi re load test magnetic sensor test OBD II drive cycle optical pickup test oscilloscope parade pattern peak-and-hold fuel injector waveform PNP fuel injector waveform power balance test primary ignition scope pattern primary superimposed pattern raster pattern saturated switch fuel injector waveform scan tool snapshot scope secondary ignition scope pattern secondary superimposed pattern short fi ring line spark line stacked pattern strategy-based diagnostics sweep rate tall fi ring line trace two-gas exhaust analyzer type A misfi res type B misfi res Technical Terms Advanced Diagnostics Chapter 34