SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSKIA2015OPTIMA SX TURBOREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 107 (ENGINE CONTROL SYSTEM DIAGNOSIS (2 OF 3) - 2.4L (EXCEPT HEV))DTC P0451: EVAPORATIVE EMISSION SYSTEM - PRESSURE SENSOR RANGE/PERFORMANCECOMPONENT INSPECTIONPCSV INSPECTION
2015 Kia Optima SX Turbo

PCSV Inspection

2015 Kia Optima SX TurboSECTION PCSV Inspection
WARNING: This page is about a different variant/trim than selected.
  1. Ignition "OFF".
  2. Disconnect the hose leading from the PCSV to intake manifold at intake manifold.
  3. Using a vacuum pump, apply vacuum to the manifold side of the vacuum hose and verify PCSV holds vacuum.
  4. Ignition "ON" & Engine "OFF".
  5. Install GDS and select "Canister Purge Valve" on the Actuation Test mode.
  6. Activates "Canister Purge Valve" by clicking "Start".
  7. Verify PCSV release vacuum while valve is activating (should hear a faint click from PCSV)
  8. Repeat this procedure 4 or 5 times to ensure PCSV reliability.

    Specification: 

    PCSV REFERENCE TABLE

    Test Condition Specification
    PCSV is ON (should hear a faint click from PCSV) Holds vacuum
    PCSV is OFF Release vacuum
  9. Is PCSV working properly?

    YES 

    • Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Verify arrow on PCSV is pointing towards intake manifold. If it is not, reverse installation. Reinstall as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    • If OK, thoroughly check fuel vapor hoses and hose clamps between PCSV and intake manifold. Repair as necessary. If OK, test with a new PCSV and check for proper operation. If problem is corrected, replace PCSV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.