Don't have access to old diesel engine with standard injectors right now. But I'm still thinking of "listening" the injector with the microphone. With an amplifier and some signal cutting I think that it will be possible to "hear" the difference between injection pulses for different loads.
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Quote:
Gerhard Plattner: "The best attitude is to consider fuel saving a kind of sport. Everybody who has enough money for a strong car, can drive fast and hit the pedal. But saving fuel requires concentration, self-control and cleverness. It's a challenge with the nice effect of saving you money that you can use for other more important things."
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