Component Inspection

Component Inspection

1. Check PCV
(1) IG "OFF".
(2) Remove PCV valve and then, check that plunger in the PCV is moving.
(3) Is the PCV normal?
YES
- Go to "Check PCSV" as follows.
NO
- Substitute with a known-good PCV and check for proper operation. If the problem is corrected, replace PCV and then go to "Verification of Vehicle Repair" procedure.
2. Check PCSV
(1) IG "OFF".
(2) Remove PCSV and Vacuum Hose
(3) Check that PCSV is just one way solenoid valve
(4) Is the PCSV normal?
YES
- Go to "Check injector" as follows.
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.
3. Check injector
(1) IG "OFF"
(2) Remove injector.
(3) Check that injector hole is clogged by foreign materials.
(4) Measure resistance between terminal 1 an 2 of injector connector. (Component Side)
A. Specification :









(5) Is the measured resistance within specification?
YES
- Go to "Check component related to fuel trim" as follows.
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.
4. Check component related to fuel trim
(1) Check component related to fuel trim such as HO2S, MAFS, MAPS, TPS, ECTS, PCSV and Injectors) - Refer to each designated trouble shooting guide.
(2) Are those component related to fuel trim O.K?
YES
- Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and then go to "Verification of Vehicle Repair" procedure.

CAUTION:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM.

NO
- Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.