Removal And Installation

Remove the air duct.
(Refer to Intake And Exhaust System - "AIR CLEANER ")
Remove the battery.
(Refer to Engine Electrical System - "BATTERY ")
Remove the air cleaner assembly.
(Refer to Intake And Exhaust System - "AIR CLEANER ")
Remove the surge tank.
(Refer to Intake And Exhaust System - "SURGE TANK ")
Remove the intake manifold.
(Refer to Intake And Exhaust System - "INTAKE MANIFOLD ")
Remove the delivery pipe and injector.
(Refer to Engine Control/Fuel System - "DELIVERY PIPE ")
Remove the oil pressure switch (A) after disconnecting the connector.
Tightening torque:

14.7 ~ 21.6 N.m (1.5 ~ 2.2 kgf.m, 10.8 ~ 15.9 lb-ft)

Fig 1: Oil Pressure Switch
Courtesy of KIA MOTORS AMERICA, INC.
NOTE:
- When removing and installing the oil pressure switch, use a deep socket as shown in the image below. 3/8" drive deep socket (24mm) with thin wall and the length less than 75mm.
Fig 2: Checking Drive Deep Socket Length
Courtesy of KIA MOTORS AMERICA, INC.

[Arrangement of tools for removing oil pressure switch]

Fig 3: Arrangement Of Tools For Removing Oil Pressure Switch
Courtesy of KIA MOTORS AMERICA, INC.

[Installation order for tools]
1. Insert a 24mm deep socket (A) to the oil pressure switch.
  
  Fig 4: Inserting 24mm Deep Socket To Oil Pressure Switch
  Courtesy of KIA MOTORS AMERICA, INC.
2. After connecting other tools as arranged in the above image, insert the tools (A) to socket.
Fig 5: Inserting Tools To Socket
Courtesy of KIA MOTORS AMERICA, INC.
Install in the reverse order of removal.
NOTE: When installing, apply sealant on the thread part.

Seal lock : THREE BOND 2403

Thickness : 0.2 ~ 0.4 mm (0.008 ~ 0.016 in.)

Fig 6: Checking Seal Lock Thread Thickness
Courtesy of KIA MOTORS AMERICA, INC.