Engine Computer
Shop OEM used auto parts including car air conditioning systems and engine computers (ECUs/PCMs). Reliable replacement modules at affordable prices.
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LEGACYECU Replacement FAQs
1. What is the difference between ECU, ECM, and PCM?
An ECU is the Engine Control Unit, an ECM is the Engine Control Module, and a PCM is the Powertrain Control Module. These terms are used interchangeably but can sometimes have precise applications or functions within the vehicle’s electronic control system, so checking your model specifications is essential.
2. Does a used ECM need to be reprogrammed?
Depending on your vehicle’s make and model, reprogramming may be required for optimal performance when it comes to an ECM replacement or used engine computer. Always check manufacturer guidelines or contact us to determine if reprogramming is required for a particular used ECM.
3. What should I do after replacing an ECU?
After installing your engine control computer replacement, it is advisable to perform an initialization or reprogramming procedure and check for diagnostic trouble codes specified by your vehicle’s manufacturer. This ensures proper integration with the car’s systems.
