If your 2002 Infiniti I35 won’t shift smoothly, a PCM relearn may help. Learn the steps and potential issues before you start.

Learn about PCM and ECM replacement for your 2004 Infiniti I35. Discover common failure symptoms, programming requirements, and whether to repair or replace your engine computer.

The 2003 Infiniti I35 ECM and PCM manage your 3.5L V6 engine and transmission. Failure causes no-starts, stalling, and check engine lights. This guide covers replacement, programming, and repair options for these critical control modules.