In part 1 of this three-part series, we covered the basics of EFI, with an emphasis on the Ford systems, though still with a somewhat generic explanation. Last month we got more into the specifics of ...

A mass air flow sensor is one of the numerous tiny widgets and gewgaws that make up a modern automobile's electronic fuel injection system. In the MAF's case, it tells the car's computer how much air ...

A device in the throttle body, the mass airflow, or MAF, sensor helps the engine computer determine the proper air-fuel mixture by measuring the mass of the air flowing past it. Because a precise ...

Electronic fuel injection was a big leap forward for engine control. However, early implementations often left something to be desired. This was the case for [Rob] and his Porsche 944, which had ...

Your engine needs a steady stream of clean air to function properly, and it's the job of the mass air flow (MAF) sensor to measure and regulate the amount of clean air entering the intake. The engine ...

Between the two tests I tried a few things including cleaning the idle control valve, Italian tune-up, new plugs, etc, but the second set of results are worse. The first garage wanted to replace both ...