There was a time not so long ago, as a weekend hobby that a mechanic was much more popular, while in practice, if you were using a screwdriver and wrench, you could have the repairs or maintenance your car consider themselves at the weekend.
The current design of modern cars means that the prospects are not so attractive for most DIYers. New models are always full of electronic data processing increasingly on sensors that automatically determine the motor parameters and performance. Things such as engine speed, wave position, the vacuum, the oxygen content of the air intake manifold, the CO2 content, plus a host of other statistics will be measured every few milliseconds or more.
Based on these measurements, the unit of the vehicle engine control ECU (engine or unit, PTU) appropriate adjustments to valve timing, ignition, fuel injectors and the fuel mixture and other important adjustments to ensure desired performance. The result could fuel consumption, speed and strength are optimized.
» Read more: Auto Service and Repairs – 3 Steps to Doing it Yourself