05-12-2020, 03:13 PM
Alain i wonder if you can help me out on this one;
"that 100% of incoming air is measured by the MAP sensor"etc.
I have always thought that the volume of air was measured by a Mass Air Flow sensor using two very small resistors placed strategically in the airflow before the air filter measuring the volt drop ( temperature difference ) between them and translating that into an output signal to the e.c.m.
Do you mean that the same air volume can be measured by the Manifold Air Pressure sensor measuring vacuum on the intake manifold?
I'm a bit unclear on that one and never worked out the role of the map sensor.
"that 100% of incoming air is measured by the MAP sensor"etc.
I have always thought that the volume of air was measured by a Mass Air Flow sensor using two very small resistors placed strategically in the airflow before the air filter measuring the volt drop ( temperature difference ) between them and translating that into an output signal to the e.c.m.
Do you mean that the same air volume can be measured by the Manifold Air Pressure sensor measuring vacuum on the intake manifold?
I'm a bit unclear on that one and never worked out the role of the map sensor.