Test Procedure
- Turn ignition off. Connect Hi-Scan Pro/Kia Data Pro Scan tool or equivalent to OBD-II Data Link Connector. See Figure . Turn ignition on. Monitor for other DTCs. If DTCs P0444 or P0445 are set, do all repairs associated with those DTCs before continuing with this procedure. If no other DTCs are set, go to next step.
- Turn ignition off. Disconnect vacuum hose from Purge Control Solenoid Valve (PCSV). Start engine. Plug vacuum hose and check for vacuum. If vacuum is found, go to next step. If vacuum isnot found, repair or replace vacuum hose or intake vacuum port as necessary and go to step 5 .
- Connect vacuum pump to PCSV nipple, apply vacuum and ensure PCSV holds vacuum. Disconnect PCSV 2-pin harness connector. Connect a fused jumper wire between battery voltage and PCSV connector terminal No. 1 (component side). With another fused jumper wire connected to PCSV connector terminal No. 2 (component side), apply ground by touching jumper wire on/off to ground. A clicking sound should be heard and vacuum should bleed off at this time. Repeat this procedure 4 or 5 times to ensure PCSV reliability. If valve is okay, problem is intermittent, go to next step. If valve is faulty, temporarily install a known-good PCSV and check for proper operation. If problem is corrected, replace valve and go to step 5 .
- Thoroughly check PCSV harness connector for loose, bent, corroded, contaminated, deteriorated or damaged connector terminals. If connector terminals are okay, go to next step. If connector terminals are faulty, repair or replace as necessary and go to next step.
- After repair, return vehicle to original condition. Clear codes using Hi-Scan Pro/Kia Data Pro Scan tool or equivalent. Verify repairs by driving vehicle and monitoring for pending codes. If DTC is set during test drive, follow appropriate DTC test procedure.