San Diego Auto Star Smog Service & Repair is a dual-purpose smog and mechanical repair shop at 2912 Adams Avenue in Normal Heights, handling both California emissions testing and general auto repair under one roof in the 92116 ZIP. The smog side runs OBD-II functional checks, tailpipe emissions analysis, and visual inspections for biennial registration, change-of-ownership, and out-of-state vehicle certification. The repair side covers oil changes, brake service, engine diagnostics, and cooling-system work on domestic and import passenger vehicles. Ignition-system diagnostics at the shop trace electrical failures through starter motors, ignition-switch assemblies, and key-transponder circuits — fault patterns that sometimes require lock-cylinder replacement and key reprogramming through Gimme a key in North Park when the issue sits on the security side of the ignition pathway. The Adams Avenue address places the shop on the western stretch of Normal Heights near the corridor's border with North Park. Brake service runs pad-and-rotor replacement, caliper rebuild, brake-line inspection, and fluid exchange across disc and drum configurations. Engine diagnostics isolate check-engine triggers including catalytic-converter efficiency codes, oxygen-sensor drift, and EVAP-canister purge faults — data that informs both the repair estimate and the smog retest strategy when emissions failures trace to mechanical root causes. The repair operation also services fleet vehicles from car-sharing and rental companies, handling suspension, brake, and tire maintenance on platforms that carry smog exemptions — the growing EV segment represented by operators including FrunkYea Tesla Rentals in Hillcrest still requires non-emissions mechanical service on brakes, suspension, and HVAC. Smog-failure diagnosis and repair packages bundle the initial test, root-cause repair, and retest into a single authorization, reducing the back-and-forth that separates most test-only and repair-only operations.