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Voltage in Common rail engine

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Hi, everybody!

Could you help me with the voltage of equipments in Toyota Common rail engine? As I see we have some voltage 3V, 5V,9V,12V,... 100V ... from EDU (Electronics Driving Unit). Could you clarify and give me some material about that?


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  • Have you checked it with an OB2 scanner? Must of the ones I've checked is 12v. @ the injector. I check both + & - side of the injector. It may be a bad injector, if it doesn't get a reading on both sides. You can go to the ob2 code to get more ideas about it.