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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (iSeeCars) – There are a lot of mechanical ...