Component Inspection

■ Check PCV 

1. Inspect the front HO2S for any silicon contamination. This contamination will be indicated by a white powdery coating and this will result in a bad false voltage signal.
2. Disconnect PCV.
3. Check that PCV is properly operating.
4. Is the PCV OK?

   YES 

   • Go to "Check the PCVS  " as follows.

   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 PCVS 

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  " as 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: 

   Coil Resistance (Ω)	Temp (°C)	Temp (°C)
   1.25	20	68

5. Is the measured resistance within specifications?

   YES 

   • Go to "Check Sensors related to Fuel Trim  " as 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 Trouble Shooting information
2. Are the sensors related to Fuel Trim OK?

   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.