Kia Picanto: Emission Control System

Kia Picanto JA 2017-2021 Service & Repair Manual / Emission Control System

Specifications
Specifications
Purge Control Solenoid Valve (PCSV)
▷ Specification
Item
Specification
Coil Resistance (Ω)
18.5 - 22.5 [23°C(73.4°F)]

Tightening Torques
Item
kgf·m
N·m
lb·ft
Purge Control Solenoid Valve (PCSV) bracket mounting bolt
1.0 - 1.2
9.8 - 11.8
7.2 - 8.7
Positive Crankcase Ventilation (PCV) Valve
0.19 - 0.29
1.89 - 2.84
1.40 - 2.09
Canister installation bolt
0.3 - 0.6
3.0 - 6.0
2.1 - 4.3

Components and components location
Components Location

1. PCV valve
2. Canister
3. Purge control solenoid valve (PCSV)
4. Catalytic converter (WCC)
5. Gasoline Particulate Filter (GPF)
6. Leveling Hose
7. Vapor Tube (Canister ↔ Intake Manifold)
8. Vapor Hose (Canister ↔ Fuel Tank)
9. Ventilation Hose (Canister ↔ Atmosphere)

1. PCV valve
2. Canister

3. Purge Control Solenoid Valve (PCSV)
4. Catalytic Converter (WCC)

5. Gasoline Particulate Filter (GPF)

6. Leveling Hose
7. Vapor Tube ( Canister ↔ Intake Manifold)
8. Vapor Hose (Canister ↔ Fuel Tank)
9. Ventilation Hose (Canister ↔ Atmosphere)


Description and operation
Description
Emissions Control System consists of three major systems.
The Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere. This system recycles gas back into the intake manifold (Closed Crankcase Ventilation Type).
The Evaporative Emission Control System prevents evaporative gas from releasing into the atmosphere. This system burns gas at appropriate engine operating condition after gathering it in the canister.
The Exhaust Emission Control System converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances by using the 3-way catalytic converter.
Schematic diagrams
Schematic Diagram

Troubleshooting
Troubleshooting
Symptom
Suspect area
Unable or hard to start engine
Vapor hose damaged or disconnected
Engine hard to start
Malfunctioning Purge Control Solenoid Valve
Rough idle or engine stalling
Vapor hose damaged or disconnected
Malfunctioning PCV valve
Rough idle
Malfunctioning Evaporative Emission Control System
Excessive oil consumption
Positive crankcase ventilation line clogged

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