P0410 OBD2 Code in Chevrolet Silverado 3.5L Engine: Air Pump Issue Diagnosis
The air pump in my 2015 Chevrolet Silverado 3.5L V6 engine turns on and off intermittently, sometimes staying on continuously. Recently, I started hearing a loud pumping noise coming from the exhaust system. The only fault code detected is P0410, which indicates an issue with the air pump (EGR or Air Pump) — not the fuel pump. No other diagnostic codes are present. I'm concerned about whether this requires replacing the air pump or if it's a wiring or sensor problem.
I'm waiting for replacement parts to arrive — hoping I don't need to replace the entire air pump assembly. Any advice on how to confirm whether it's truly the air pump or a related component?