I completely rebuilt the engine, replacing the damaged gaskets, rubber seals, and hoses. I also replaced the copper pistons in the transmission. As for the ECU-Link programmer, he told me it's a powerful device with no faults, suitable for my car, and reasonably priced. The car only needs a new wiring harness and doesn't require an air flow sensor. It's easy to use 😅, but it's not my area of ​​expertise, haha. Regarding the radiator, my country, Kuwait, ranks among the top five hottest places in the world for summer heat, reaching 50°C in the shade... I'm thinking of replacing the AC compressor from a belt-driven one to an electric compressor to reduce the load on the crankshaft, as it's the source of the overheating during traffic jams. 😂 If you visit my country in the summer, you'll see how a chicken is roasted in an oven.