Last month we fielded a question about a fault code a reader had been trying to repair for more than a year. To recap, the Corvette in question, a ’96 model, had a recurring P0171 code, or “System Too ...

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 ...

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 ...

When the Tuned Port fuel-injection system arrived in 1985, it was asignificant improvement on the throttle-body systems that came before.Much cooler looking and with more power potential, the Tuned ...

One of the first companies to get heavily involved in aftermarket EFI is Air Sensors. If you recall the optional TBI offered by B&M for its small supercharger, that unit is an Air Sensors design.

How does a mass air flow sensor work? What is a MAF sensor? This video explains how a hot wire type mass air flow sensor helps the engine determine how much fuel to inject, by giving a proper reading ...