This bulletin applies to 2012-2015 Toyota Prius PHV, 2012-2016 Prius V and 2010-2015 Prius vehicles.
Some vehicles may exhibit a “runs rough” and/or MIL on condition with DTCs P0300, P0301, P0302, P0303 and P0304 (misfire) during light acceleration while the EGR system is active.
Replace the intake manifold assembly with a revised manifold to address this condition. The improved intake manifold for all of these applications is P/N 17120-37054. This only applies to rough running and the afore-noted DTCs while the EGR system is active.
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
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.
