![]() That new ECM can be remapped to operate with your specific engine, and use the available maps and the way the way your old ECM operated to be very accurately tailored to the requirements of your engine. The advantage of this process is that you can use a different engine computer than the one your vehicle originally came with. Because the ECM is so important to the proper function of nearly every vehicle component, this might mean that the rest of your vehicle will suffer performance problems or that it won’t operate correctly. Without reflashing, the data stream from an aftermarket computer that the other components in the car rely on will be missing or not meant for your specific vehicle. In other words, flashing an ECM allows it to have the same software and parameters that it would have were it in a vehicle rolling new off the assembly line. Reflashing allows the engine to be tuned calibrated in the same way that the factory does it. ![]() For people who just want the latest OEM software, flashing their new aftermarket engine computer can give it the same parameters and settings they had with their previous factory engine computer.Īt Car Computer Exchange, we remap and reflash repaired engine control modules in order for them to work seamlessly with vehicles they weren’t specifically designed for. Flash Tuning for a Different Vehicle – This type of reflash is performed when an aftermarket ECM is installed in a vehicle.Flashing because of Vehicle Issues – If your vehicle is showing false error codes, has a hot or cold starting issue, experiences idle roughness, stalling, or an emissions failure, it may be because the existing software needs to be replaced.Reflashing for Performance – A performance reflash can help you maximize the drivability and responsiveness of your vehicle, as well as allow you to get the most power possible out of your engine.Flash tuning an ECM can help you decrease your fuel costs by optimizing your engines for fuel economy. Remapping an ECM for Economy – For business owners who have a fleet of commercial vehicles, fuel efficiency is the name of the game. ![]() Essentially, an ECM reflash is either done to improve the performance (or make it more to your liking) or to match an aftermarket ECM with its new vehicle. This is because ECUs are programmed with built in safeguards designed to cover the use of substandard or lower octane fuel, to meet environmental regulation standards, and to protect the engine from the damaging effects of neglect – like leaving it too long between services. However, in many cases, these settings may not be the most optimal ones possible for your vehicle or for what you are looking to get out of your car performance-wise. This is where remapping an ECM comes in.Īs we mentioned, when manufacturers build a new vehicle, they program the engine module to certain set specifications. Because these limits are tailored to your specific vehicle and engine, you can’t just swap out one ECM for another without also updating or modifying the software. These original parameters are at least in part determined by what the manufacturer expects you to get out of the vehicle and the level of performance that they think you expect to get out of it.Įngine parameters may include fuel injection volume, throttle-fuel volume mapping, gear shift mapping, and so forth. Essentially, the software determines the limits within which the engine is allowed to operate. The real brains behind your engine control module is its software. What makes engine computers especially advanced is the fact that, not only are they tailored to your specific vehicle, they are also able to learn about you, your driving habits, and the conditions you typically drive in.Įssentially, the ECM adapts cars to their drivers, in order to ensure those drivers are getting the most out of them in the most efficient way. It controls, monitors, and regulates all of your engine function to ensure your vehicle is running at its optimal performance level. Reflashing an ECM is an immensely powerful technique that allows the engine to be tuned in the same way that the factory calibration engineers perform the task.Īs we’ve explained before in past articles, your car’s ECM is its central computer. ![]() Reflashing or remapping an engine computer is essentially just the process of replacing the existing software in a vehicle controller with new software. Like any computer, your car’s ECM has software with different settings or parameters, and these can be changed to alter the performance and driving limits of a vehicle. Reflashing an ECM is a tuning technique that is also often called flashing, remapping, or flash tuning.
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