1. Fuel Injectors: The ECU controls the fuel injection, so you may need to install fuel injectors that are compatible with the new ECU. This may also involve changing the fuel pressure regulator.
2. Wiring: The wiring harness may need to be modified to accommodate the new ECU. This may involve adding or removing wires, as well as changing the pinout of the ECU connectors.
3. Sensors: The new ECU may require different sensors than the original ECU. This may include sensors for the oxygen sensor, throttle position, and coolant temperature.
4. Programming: The new ECU will need to be programmed with the correct software for your car. This may involve using a special tuning tool or software provided by the ECU manufacturer.
It's important to note that these are just potential changes that may be required, and the exact modifications needed may vary depending on the specific ECU you choose and your car's individual configuration. If you're not comfortable making these modifications yourself, it's best to consult with a qualified mechanic or tuner.
