Kia Picanto JA Quiz

Emission Control System

In this manual: Emission Control System
General Information — 8Maintenance — 30Engine Mechanical System — 46Engine Electrical System — 14Emission Control System — 11Engine Control System/Fuel System — 46Clutch System — 12Manual Transmission — 10Drive Shaft and Axle — 8Suspension System — 15Steering — 9Restraints — 17Brake System — 22Body (Interior and Exterior) — 104Body Electrical System — 80Heating, Ventilation, and Air Conditioning — 17
~2min read

Specifications

Specifications

Purge Control Solenoid Valve (PCSV) ▷ Specifications
Item Specification
Coil Resistance (Ω) 18,5–22,5 [23 °C]

Tightening torque

Item kgf·m N·m lbf·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 Mounting Bolt 0,3 - 0,6 3,0–6,0 2,1 - 4,3

Components and Component Location

Component Location

1. PCV valve
2. Canister
3. Purge control solenoid valve (PCSV)
4. Catalytic converter (WCC)
5. Gasoline particulate filter (GPF)		 6. Balance hose
7. Vapor tube (reservoir ↔ intake manifold)
8. Vapor hose (canister ↔ fuel tank)
9. Vent hose (canister ↔ atmosphere)

1. PCV Valve 2. Canister
3. Purge Control Solenoid Valve (PCSV) 4. Catalytic converter (WCC)
5. Gasoline particulate filter (GPF)
6. Balance hose
7. Vapor tube (reservoir ↔ intake manifold)
8. Vapor hose (canister ↔ fuel tank)
9. Vent hose (canister ↔ atmosphere)

Description and Operation

Description

The emission control system consists of three main systems.
  • The crankcase emission control system prevents crankcase gases from being released into the atmosphere. This system recirculates the gas back to the intake manifold (closed crankcase ventilation).
  • The evaporative emission control system prevents fuel vapor from being released into the atmosphere. This system stores fuel vapor in the canister and purges it into the engine to be burned under proper operating conditions.
  • The exhaust emission control system converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx)] into harmless substances using a three-way catalytic converter.

Circuit Diagrams

Schematic Diagram

Troubleshooting

Troubleshooting

Symptom Suspected Area
Engine cranks but does not start, or is difficult to start Vapor hose damaged or disconnected
Engine cranks hard Faulty Purge Control Solenoid Valve
Rough idle or engine stalls Vapor hose damaged or disconnected
Faulty PCV Valve
Rough idle Faulty Evaporative Emission Control System
Excessive Oil Consumption PCV hose clogged

Test yourself

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