2004 Acura RSX - P1078 Diagnostic and Fix (Bad Solenoid)

POV diagnostic run in the 2004 Acura RSX the CEL pops on, throwing a P1078 code, pointing straight to the IMRC (Intake Manifold Runner Control) / bad solenoid. The drive shows the symptoms clearly: sluggish low‑end response and the ECU locking into a default map. A quick check confirms the solenoid isn’t actuating, so it gets swapped out and the RSX immediately comes back to life. Light cleared, power restored, and the DC5 is running smooth again. A clean fix and a satisfying end to a simple diagnostic session. FOLLOW gMoney Buddy: TikTok ►   / gmoneybuddy15   Twitter ►   / streethonda95   Instagram ►   / gmoneybuddy_85   Twitch ►   / gmoneybuddy