Hyundai Elantra: Removal - Brake Booster Vacuum Pressure Sensor. Repair procedures - ISG (Idle Stop & Go) System - Fuel System - Hyundai Elantra MD 2010-2015 Service manualHyundai Elantra: Removal

Brake Booster Vacuum Pressure Sensor can not be replaced separately due to vacuum leak.
Therefore, the sensor must be replaced with an assembly with the brake booster.
(Refer to Brake System - Brake Booster)