It can also be inconvenient since you’ll need a mechanic with an expensive computer to read the error code. This can be advantageous since you can determine the exact cause of failure. When an issue arises, the ECM will log an error code that lets you know the source of the problem. However, it can also be a little opaque if you’re used to doing your own repairs. This is superior to old, mechanical systems, where you had to adjust the carburetor from time to time or have the engine timing tuned.
It also controls the transmission in automatic transmission vehicles, and valve timing on vehicles with variable valve timing. The ECM controls a number of systems, but the most important ones for our purposes are the air to fuel ratio, the engine timing. That is why it is so important to recognize the symptoms of ECM failure. When conditions change, the ECM will automatically make adjustments in real-time. Your car’s Engine Control Module (ECM) monitors all the sensors in the vehicle to make sure that the car’s systems are running as they’re supposed to. 4 Painful Signs That Your Car’s Engine Control Module Has Problems
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