The cars of today significantly differ from the automobiles of yesteryears not just in terms of aesthetics. Faster, more effective machines are now accessible, brought about by the greatly improved skills of the engine mechanics of today. More importantly, modern-day vehicles have an equally-modern part in them: computers.
Computers exist inside each and every vehicle though not the PC type. These devices, called powertrain control modules (PCM), are really more like calculators that concert the entire vehicle's functions such as in the shifting of gears in an auto transmission auto as it accelerates. One can't stress the significance of a powerful Jeep PCM.
A PCM is comprised of two components: the engine control unit (ECU) and the transmission control unit (TCU). The ECU is in charge of establishing the right amount of fuel and air for combustion, control of a car's idle speed, ignition timing, and the timing at which valves open to let air in. In brief, the ECU helps run the engine at top and efficient performance, many thanks to smart, timed-release methods.
Alternatively, TCUs are a group of sensors that function together with the ECUs to ensure the changing of gears is timed properly. While the ECU concerns itself with engine performance, the TCU is the unit that aims to maximize that very power by determining at which moment gear shifting is optimal, promoting higher speeds and better acceleration. The PCM, being a combination of these 2 devices, is thus something that helps automatic transmission cars get the most from their engines.
These PCMs are so vital that should it fail to work, the engine will not start; one will need to repair or replace it. In addition to that, a car's PCM should be set to its exact specifications and needs. The valuable Jeep PCM, for example, should be tuned to allow the auto to travel over rough landscapes at decent speeds without experiencing so much as an engine hiccup.
The development of cars has gone a long way; cars are a lot more money-saving and safer to use than they were previously. Many thanks need to go to the works of your car's little brain, the PCM. An essential guide to the PCM can be seen on ehow.com/about_4727873_what-pcm-engine.html.
Reasons Why the Jeep PCM is Essential