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Porsche is known for its high-performance luxury sports vehicles - the best-selling model being the Cayenne. The company's founder, Ferdinand Porsche, created the world's first hybrid vehicle in 1899. It was called the Lohner-Porsche and was driven by electricity with a fuel-powered generator to charge the batteries, though it never made it into production.

Porsche continues to break new ground to this day; in 2017, the Cayenne S Diesel model earned the Guinness World Record for towing the heaviest vehicle, pulling an enormous Airbus A380 aeroplane weighing 285 tonnes.

ECU stands for engine control unit, sometimes referred to as the engine control module (ECM). This component ensures your car's engine runs smoothly by, for example, determining the amount of fuel that goes into the cylinders. You can find out more about how it works here.

Signs of a faulty ECU include misfires, the check engine light, starting problems, and engine surges or lags. ECU testing and repairs can help you work out the cause of the problem, such as faulty wiring or a bad sensor.

ECU testing uses a diagnostic tool known as an OBD scanner, which extracts information from the car's computer and allows the technician to check fault codes.

Can an ECU be repaired? Most of the time, the answer is yes; the ECU can be reprogrammed or repaired. The same applies to water damaged ECUs, as long as the damage is minimal. Some technicians may offer mobile ECU repairs at a location that's convenient for you.