When the check-engine light snaps on, it is not a suggestion, it is your car’s way of saying something in the powertrain or ...

Here's what drives cars of the '80sâ the Electronic Computer Module(ECM).Typical GM unit has an analog board to run sensors, digital board for"thinking" and memory. Removable PROM(at left)calibrates ...

The magic of computers now lets anyone with a home computer build and test virtual engines in minutes. One of the best-selling programs in the budding field of engine-simulation programs is the ...