by obd2diag » Mon Jun 02, 2025 6:18 am
Hello, I'm a car enthusiast. I do all the mechanical work on my car and now I'm looking to dive into the ECU tuning world. One of my cars is a Volvo S40 T5 with upgraded turbo, intercooler, injectors, 3" stainless steel full exhaust, ported intake manifolds and performance camshafts. I'm interested to learn the process of tuning the Bosch ME9 ECU. Mostly to fix a cold start issue it has during warmer days. But also to get familiarized with this ECU and adjust the tune accordingly once I upgrade the engine even more.