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3.3.7 Injector (Diesel)
Most diesel engines use common rail fuel injection, fuel injection time is affected by the oil pressure. Low pressure
at low speed, injection time is longer, less injection volume; High pressure at high speed, injection time is short,
volume is large. There are mainly Bosch common rail injectors, Delphi injectors, CDi version 3 system injectors,
piezoelectric injectors, Volkswagen Audi's PD system, Volkswagen Audi's piezoelectric PD, etc. on the market.
Use ATO oscilloscope to test the fuel injector (diesel engine), the specific operation is shown in Figure 3-33:
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