Automotive diagnostics
Year‑on‑Year Breakdown of the Most Common Engine Fault Codes: 2024 vs 2023 - expert-roundup
Introduction: Year-on-Year Overview By early Q3, diesel engines were flagging P0720 on 37% of vehicles - does your shop see the same trend? The most common engine fault codes in 2024 were P0720, P0300, and P0171, while 2023 was dominated by P0300, P0420, and P0171. I’ve spent the last