1987 Ford LTD Crown Victoria Injector Bank Excessive Current Waveform - Fig. 5

This document is a page from a Mitchell Repair Information waveform tutorial titled "Waveforms - Injector Pattern Tutorial." It presents Fig. 5, a lab scope screen capture labeled "Injector Bank w/Excessive Current Flow - Current Pattern," recorded on a 1987 Ford LTD Crown Victoria. The oscilloscope settings shown on screen include a positive trigger slope, single waveform mode, trigger source #1, DC signal coupling, signal invert off, and a scale of 1.0 volts per division, with the display frozen and captured through the auxiliary lead. The waveform itself shows a flat baseline interrupted by a single injector bank current pulse that ramps up to a plateau (roughly three divisions high at 1.0 V/div) before dropping sharply back to baseline, illustrating what an excessive current flow pattern looks like for a bank-fired injector circuit. Soft-key menu labels for grid on/off, cursors, volts range/time base, waveform position, and menu select are visible at the bottom. The page carries reference number 95E23865, was printed Friday, February 13, 2004 at 12:12 PM, and is copyright 2003 Mitchell Repair Information Company, LLC. It is part of a set of injector pattern tutorial waveform examples useful for diagnosing fuel injector driver circuits.