Normally, you don’t have to maintenance the camshafts or valves in a Toyota VVTi engine's lifetime, as they are built to last for a long period. However, if something goes wrong and you need to do it, ...

The most common 1.6-liter VVTi engine on your Toyota Corolla features a bundle of electrical wires attached to it that controls things like fuel injectors and ignition coils. If for some reason you’ve ...

Decades ago (OK, half a century or more), there was a product advertised in many of the performance magazines called the Varicam. The idea was a set of springs attached to a centrifugal device that ...

In last month's "Tech Scene," we compared the differences between Toyota's VVTL-i (Variable Valve Timing and Lift-intelligence) and Honda's VTEC (Variable Valve Timing and lift Electronic Control).

Variable valve timing and variable valve lift may sound similar, but they're entirely different. Here are the differences between them and how they work.