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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis (Single Page) >> General Information >> Engine Performance >> Waveforms - Injector Pattern Tutorial - General Information >> Current Waveform Samples >> Example #5 - Current Controlled Driver

Example #5 - Current Controlled Driver

The known-good waveform in Fig. Fig 1 is from a Chrysler 3.0L V6 PFI VIN [3]. It is a perfect example of the peak and hold theory. The waveform shows a 1-amp per division current flow, ramping to 4 amps and then decreasing to 1-amp to hold the injector open.

Fig 1: Injector Bank w/Normal Current Flow - Current Pattern
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