Nice dude!! I can totally relate--no garage, limited tools, but plenty of enthusiasm!

I think replacing the exhaust manifold on my Jeep was the most satisfying repair I've made, because it involved a lot of removal/disassembly of engine hardware, and thus felt the most like I was a mechanic. Plus it allowed me to clean 25 years of grime off the engine block so it looked really nice in the end! It did NOT however, help me pass the smog check, which was my main objective