This bulletin applies to 2016-2024 Chevy Camaro vehicles equipped with an LGX, LT1 or LT4 engine. The check engine light may be on and/or an exhaust noise may be heard.
This bulletin applies to 2016-2024 Chevy Camaro vehicles equipped with an LGX, LT1 or LT4 engine. The check engine light may be on and/or an exhaust noise may be heard. DTC P12FD or P12F0 may be set.
This concern may be caused by an exhaust actuator that was installed but the learn procedure was not completed. Perform a relearn of the cylinder deactivation valves using GDS2 to resolve the condition. These valves are also referred to as the active fuel management valves (AFM). They are located before the muffler.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
