Component Inspection

■ Check PCV 

1. IG "OFF".
2. Disconnect PCV.
3. Check that PCV is properly operating.
4. Is the PCV O.K?

   YES 

   • Go to "Check PCSV" procedure below.

   NO 

   • Substitute with a known - good PCV and check for proper operation.

     If the problem is corrected, replace PCV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check the PCSV 

1. Ignition "OFF".
2. Disconnect PCSV and Vacuum Hose.
3. Apply vacuum on PCSV with Hand Vacuum Gauge.
4. Is the PCSV keeping the Vacuum?

   YES 

   • Go to "Check Injector" procedure below.

   NO 

   • Substitute with a known-good PCSV and check for proper operation.

     If the problem is corrected, replace PCSV and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check Injector 

1. Ignition "OFF".
2. Remove Injector.
3. Check Leakage and clog on Injector.
4. Measure resistance terminal 1 and 2 of Injector connector (Component side).

   Specification:  Approx. 1.25Ω(20°C)

5. Is the measured resistance within specifications?

   YES 

   • Go to "Check sensors related to Fuel Trim" procedure below.

   NO 

   • Substitute with a known-good Injector and check for proper operation.

     If the problem is corrected, replace Injector and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check Sensors related to Fuel Trim 

1. Check the Input Voltage of Sensors related to Fuel Trim (MAPS, TPS, ECTS, PCSV, Injector, and etc) - (Refer to ENGINE CONTROL SYSTEM - Trouble Shooting Guide)
2. Are the sensors related to Fuel Trim O.K?

   YES 

   • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.