Mike's Auto Repair & Smog Center in Chula Vista holds Bureau of Automotive Repair license ARD 218704 as a STAR-certified test-and-repair station at 300 E Street near the I-805 corridor. Vehicles failing OBD-II or tailpipe thresholds receive on-site catalytic converter diagnostics, EGR valve cleaning, and oxygen sensor replacement before retest, a repair-then-recheck loop that independent shops such as Becka Automotive also support for gross-polluter referrals. Beyond smog, the shop handles engine overhauls, head and valve jobs, clutch replacements, and complete transmission rebuilds — a full mechanical scope from a single E Street bay. The STAR certification qualifies the station to inspect Directed Vehicle referrals and gross-polluter flagged registrations, a pre-DMV compliance step that owners often combine with cosmetic prep at Soapy Joe's Car Wash on Main Street before finalizing registration renewals. Top-tier repair work includes cylinder head resurfacing and valve seat machining, pressure-plate and throwout-bearing clutch assemblies, and complete long-block engine rebuilds with new pistons, rings, and bearings.