Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2011 Kia Rio LXFACTORY OEM SERVICE PROCEDURE

Repair procedure (A4AF3): Replacement

Remove the battery terminal (A).

Fig 1: Identifying Battery Terminal
Courtesy of KIA MOTORS AMERICA, INC.
Remove the intake air hose and air clean assembly.
(Refer to the REMOVAL /INSTALLATION procedure)
Disconnect the sensor wire from the control cable mounting bracket.
Remove the pulse generator A, B.
1. Disconnect the connector from the sensor.
  
  Fig 2: Identifying Pulse Generator
  Courtesy of KIA MOTORS AMERICA, INC.
2. Measure the pulse generator A, B resistance.
  Standard value:
  
  Pulse generator A: 245±30Ω/20°C (68°F)
  
  Pulse generator B: 245±30Ω/20°C (68°F)
  
  Fig 3: Measuring Resistance Between Pulse Generator
  Courtesy of KIA MOTORS AMERICA, INC.
3. If the result isn't within the standard value, remove the pulse generator A, B.
  
  Fig 4: Identifying Pulse Generator (1 Of 2)
  Courtesy of KIA MOTORS AMERICA, INC.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.