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Thanks to the increasing complexity of modern automobiles over the past few years, most professional auto shops and garages now require a selection of automotive scan tools with which to carry out day to day diagnostic work in order to pinpoint any problems with an engine or engine management system in order to discover what action is needed in order to effect a repair with the minimum of error and maximum efficiency.

There are a variety of different tools available to carry out diagnostics and scans on different types of car and to prepare to repair as effectively as possible. Knowing in detail what issues are causing a car engine to behave in a particular manner is the key to being able to correct the fault in a timely and effective manner.

Perhaps the best known manufacturer of automotive scan tools is OTC, who make a range of tools designed for the highest quality and best price. A comprehensive range is available to enable mechanics to be able to tackle any job they come across, and the range of OTC automotive scan tools is recognized as one of the top choices for the professional, as well as being affordable enough for domestic use under certain circumstances.

Different jobs require different tools, and some are more complex than others. Typically, any job to repair a modern car begins with plugging the scanner into the engine management computer and downloading a log of current performance date. This will include fuel consumption, and time since the last service. It will give the mechanic a complete overview of how the engine is operating, and where there might be errors occurring. The scan will show the mechanic examining the engine whether there are any problems with the fuel supply, the electronics, the air filters, and the running temperature, it will also provide plenty of insight into whether any problems are related to an issue within the engine itself, or indeed within the way the management system has been set up.

A complete diagnostic of a car's engine management computer system will typically offer an almost immediate list of the performance details for the vehicle, and a good automotive scan tool will shave hours off an otherwise lengthy repair task, as the mechanic will be able to tell almost immediately what is wrong, and what needs to be done in order to repair the damage.

Of course, technology only works well in the hands of those who understand it, and are able to sift through the data provided through a scan and interpret it correctly. However, the latest OTC automotive scan tools have been designed to be almost fool proof, and are able to draw on the experience and insight of hundreds of different programmers and mechanic's personal records in order to provide a more accurate overview of the data and even present possible solutions to many of the most common problems that a mechanic might encounter.

While some manufacturers release their own range of tools, that are aimed at main dealers, a commercial mechanic may deal with many different models and manufacturers in their day to day role, and this is why it is often an idea to purchase OTC automotive scan tools, as they will be compatible with a range of different vehicles from different international makers, and therefore offer greater flexibility without having to compromise on quality or pay repeatedly for scanners for every single car that is on the market.

While commercial level automotive scan tools are expensive to install and themselves require regular system updates that carry the latest settings for every new vehicle released, they pay for themselves almost immediately thanks to the time that they are able to save, and the fact that without them, even the most experienced mechanic would struggle to discover the inner workings of the latest car engines, which have been designed to be efficient, and robust, but are increasingly too complex for anyone but the experts to consider carrying out any work on.