Re: Maf ???????
It works by heating a wire to a constant temperature above ambient. The air entering the engine cools the wire, requiring an increase in current to maintain the temperature difference. This increase in current causes a voltage drop across a resistor in the control unit to change. This voltage drop is amplified and sensed by the ECU. The voltage output of the sensor is proportional to the mass (rather than the volume) of air entering the engine.
Just think, if LA hadn't been smog bound in the 70's, we problably would not have all this high tech anti smog gear on our cars.
California is the biggest domestic car market in the States, and so when they passed all their anti-smog laws in the mid-late seventies, the car makers had to lift their game. And so ended the glorious era of the 70's V8 muscle cars.
And with it came recommendations for lighter engine oils, which were more for gas mileage than engine protection.
"I married Miss Right. I just didn't know her first name was Always."