An error in National Highways' system has meant thousands of variable speed camera fines have been issued by mistake.

Retarding cam timing does the opposite. So the engine’s powertrain control module evaluates multiple inputs from sensors (crank, cam, temperature, mass air flow, throttle position, etc.) and varies ...

The camshaft has to be one of the most complex subjects in car tuning. But what do cams actually do? We’ll be answering that and everything else you need to know about them in this guide. Well, to put ...