PCV(Positive Crankcase Ventilation) valve check
Key "OFF".
Disconnect PCV valve.
Check the movement of plunger by putting in and out a thin stick.
Is the movement of plunger normal?
YES
Go to "Injector check" procedure.
NO
Substitute with a known - good PCV valve and check for proper operation.
If the problem is corrected, replace PCV valve and go to "Verification of Vehicle Repair" procedure.
Injector check
Key "OFF".
Disconnect injectors.
Check clog on injectors..
Measure the resistance between terminal 1 and 2 of injectors(Component side)
Specification :
ITEM | Specification |
Coil Resistance | 13.8 ~ 15.2 Ω at 20 ℃ (68℉) |
Is the measured resistance within specifications ?
YES
Go to "Sensors related to air/fuel ratio check" procedure.
NO
Substitute with a known - good Injector and check for proper operation.
If the problem is corrected, replace Injector and go to "Verification of Vehicle Repair" procedure.
Sensors related to air/fuel ratio check
Check the output data of sensors related to air/fuel ratio (HO2S, MAPS, TPS, ECTS, PCSV, Injectors, etc) on scantool. (Refer to each DTC guide procedure.)
Are those sensors normal?
YES
Substitute with a known - good ECM and check for proper operation.
If the problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.
NO
Repair or replace as necessary. And then, go to "Verification of Vehicle Repair" procedure.
