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KESSv2 allows you to read and write the ECUs of cars, bikes, trucks, tractors and boats simply connecting the tool to the diagnostic port.
Read and Write an ECU via OBD: using KESSv2 is quick and easy.
In this article, we got our Kess v2 4.036 updated and reworked unit. Which we tested with pretty complicated and not easy to do, Denso RF8G Renesas which is mounted on Mazda 6 2.0 MZR-CD 2010.
We successfully read, tuned (by IGNITec Chiptuning) and wrote back without a single problem.
Important is to maintain good voltage like 13-14 volts and everything will go smooth and safe.