Volkswagen Corrado (1993 year). Manual - part 219

 

  Index      Volkswagen     Volkswagen Corrado - service repair manual 1993 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  217  218  219  220   ..

 

 

Volkswagen Corrado (1993 year). Manual - part 219

 

 

WAVEFORMS - INJECTOR PATTERN TUTORIAL 

         CURRENT WAVEFORM SAMPLES

         EXAMPLE #1 - VOLTAGE CONTROLLED DRIVER

         The waveform pattern shown in Fig. 4 indicate a normal
current waveform from a Ford 3.0L V6 VIN [U] engine. This voltage
controlled type circuit pulses the injectors in groups of three
injectors. Injectors No. 1, 3, and 5 are pulsed together and cylinders
2, 4, and 6 are pulsed together. The specification for an acceptable
bank resistance is 4.4 ohms. Using Ohm's Law and assuming a hot run
voltage of 14 volts, we determine that the bank would draw a current
of 3.2 amps.

WAVEFORMS - INJECTOR PATTERN TUTORIAL 

Fig. 4:  Injector Bank w/Normal Current Flow - Current Pattern

WAVEFORMS - INJECTOR PATTERN TUTORIAL 

Fig. 6:  Single Injector w/Normal Current Flow - Current Pattern

Fig. 7:  Single Injector w/Excessive Current Flow - Current Pattern

         EXAMPLE #2 - VOLTAGE CONTROLLED DRIVER

WAVEFORMS - INJECTOR PATTERN TUTORIAL 

Fig. 8:  Injector Odd Bank w/Normal Current Flow - Current Pattern

 

 

 

 

 

 

 

Content   ..  217  218  219  220   ..