Diagnostic walkthroughs, shop economics, and real-world lessons from independent auto repair shops.
Most shop owners spend two hours a night doing invoices. Here is how modern shop management software, integrated payments, and AI-assisted line items have changed that.
A step-by-step diagnostic workflow for P0420 on mid-2010s Toyota Camry. O2 sensor checks, catalyst testing, common misdiagnoses, and when to actually replace the converter.