Application of a lot of modern technological solutions in every car manufactured in present times contributes to increased safety of driving and easier defect diagnostics. One of the main elements, which is considered as the proverbial ‘heart of the car’ is without doubt the engine control unit thanks to which our car will function correctly. Thanks to this small and at first sight inconspicuous device, all the systems that are present in our vehicle work together properly. In the event of a failure of the controller we can replace it with a new one or possibly try to repair this element.
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The repair option, even though it is somewhat cheaper turns out to be much more difficult than the replacement; therefore, a lot of people go for the option of finding a used controller and replacing the defective one. The symptoms of a defective engine controller are even visible to the naked eye. It starts with problems with starting the car. After starting, the accelerator pedal is almost non-responsive, also signs of uneven operation of the drive unit are noticeable and the engine tends to stall. Also, there may appear smoke over the engine.
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A failure of the controller usually happens as a result of an external defect, such as short circuits in the wiring system, a defective sensor or malfunction of the ignition coil. The defect can also be caused by an unskilfully mounted LPG installation. The most effective method that enables troubleshooting in our car is obviously a diagnostic test of the vehicle using a computer software. For this purpose, it is necessary to visit a nearby diagnostic station and have the car connected to a computer.
In the vast majority of cases controller defects concern its tiny elements, such as various kinds of resistors, capacitors, relays or fuses. One of the most sensible actions is to replace the controller with a used one; you can get one here: Wanted an engine control unit. Any attempts at repairing the defect in the vast majority of cases end in a fiasco.