Select the ECU you want to access from a list. Save the file to your computer’s hard drive for editing.įirst turn the ignition on to position 2. Click the read button to access the original data. Once I’ve connected this cable to my car, how do I read data from my car’s ECUs?įirst turn the ignition on to position 2.No, you only need to have your ignition on. Do I need to have my engine on to flash my ECUs?.Some ECUs can not be flashed with this OBDII connector. You can now perform ECU flashing on your computer. Simply plug one end of this cable into your vehicle’s OBD port and the other end into your computer. With this cable, you do not have to physically replace or alter any hardware in your vehicle. Technically,”chip tuning” refers to physically replacing ECU ROM.
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