Emission Control System

Catalytic Converter

11steps
~66min
3/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 11

Description and Operation

Description

The gasoline engine catalytic converter is a three-way catalyst. It oxidizes carbon monoxide and hydrocarbons (HC) and separates oxygen from nitrogen oxides (NOx).

Repair Procedures

Removal

[Catalytic Converter]
  1. Remove the engine room cover. (Refer to Engine Mechanical System - "Engine Room Cover")
  2. Drain the engine coolant. (Refer to Engine Mechanical System - "Engine Coolant")
  3. Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner")
  4. Remove the front muffler. (Refer to Engine Mechanical System - "Muffler")
  5. Disconnect the extension connector (A) of the Electric Wastegate Actuator (EWGA).
  6. Remove the front oxygen sensor. (Refer to Engine Control/Fuel System - "Heated Oxygen Sensor (HO2S)").
  7. Disconnect the water hose (A).
  8. Disconnect the turbocharger drain pipe hose (A).
  9. Remove the heat shield of the coupling (A) and the water drain pipe (B). Tightening Torque Heat Shield Mounting Bolt: 9.8–11.8 N·m (If equipped with a cap, tighten until the cap is removed.) Eye Bolt: 26.4–32 N·m Pipe Mounting Bolt: 9.8–11.8 N·m
  10. Remove the exhaust manifold support (A).

    Torque: 39.2 – 44 N·m

  11. Remove the warm-up catalytic converter (WCC) upper support (A), then remove the warm-up catalytic converter (WCC) (B). Tightening Torque Warm-Up Catalytic Converter (WCC): 49.0–54 N·m WCC Upper Support: 18.6–24 N·m

Installation

  1. Install in the reverse order of removal.

Test yourself

A quick Kia Picanto JA quiz: every answer comes with an explanation and a link to the manual page.