It all started during a routine drive on the M6 when my Mazda 3 began hesitating under acceleration. The engine felt sluggish, power delivery was inconsistent, and eventually a check engine light illuminated. Pulling over, I noticed the revs wouldn’t climb properly, and there was a noticeable lack of thrust even in lower gears. At the local garage, diagnostics revealed low compression across multiple cylinders, pointing to worn piston rings and bearing issues rather than a simple sensor fault. This wasn’t a quick fix; the mechanic explained that continued driving could lead to catastrophic failure. I knew I needed something more substantial than patches.