Quote:
Originally Posted by some_other_dave
A few old systems, and also the Mechanical Fuel Injection used on older Diesels and some rather old gasoline cars (e.g., BMW 2002 tii, 69-72 Porsche 911s, etc.) did use throttle position as the primary measurement of engine load. It worked, but was not very clean or efficient.
-soD
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Thanks for the explanation, I guess the above old systems will suffer more from dirty air filter as when you push the gas pedal down you are demanding more fuel but the air flow is restricted.