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your ECU is in great hands with us
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we love your ECU the same as do
Fundamentally, the engine ECU controls the injection of the fuel and, in petrol engines, the timing of the spark to ignite it.
An ECU is often referred to as the ‘brain’ of the engine. It is essentially a computer, a switching system and power management system in a very small case. To perform even on a basic level, it has to incorporate 4 different areas of operation.
The inputs and outputs of an ECU are individually monitored by the processor, often dozens of times a second, to ensure they’re within the tolerances set in the software.
In some circumstances, the self-diagnosis routine discovers a serious fault that either fundamentally prevents the engine from running, or shuts the engine down in the interest of safety.
Many people question the necessity of drive-by-wire throttle control. Introduced in the 90s, it is now fitted to almost every engine produced today, but what are the advantages over a traditional cable?
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The first stage of ECU operation is in fact power management. This is where various voltages are regulated and the power-up of the ECU is handled. Most ECUs have sophisticated power management due to the variety of components inside, accurately regulating 1.8V, 2.6V, 3.3V, 5V, 30V and upto 250V all from the car’s 10-15V supply. The power management system also allows the ECU to have full control over when it powers itself down – i.e. not necessarily when you turn off the ignition switch.