Elantra N Intake CEL (P04DB) Fix Kit

Reduce or Eliminate the P04DB Check Engine Light from installing an aftermarket intake on the 2024-2025 Hyundai Elantra N with our new crankcase ventilation hose assembly. This kit is included in all SXTH Intake systems starting 10/1/2025. If you already have a SXTH Intake, and you have gotten a CEL, please email us so we can send you this for free! This hose is a direct replacement for the OEM Crankcase Ventilation (CV) hose that connects the valve cover to your intake system. The hose works to regulate the crankcase pressure in the hose/valve cover within sensor limits when an aftermarket intake is installed.