Ignition "OFF"

Connect Scantool and Engine "ON"

Perform Actuation Test for Injector with scantool.

Is the engine poor idle generated by ACUTATION TEST for Injector ?

YES

▶ Fault is intermittent caused by poor contact in the sensor’s and/or PCM’s connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection,bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.

NO

▶ Go to "W/Harness Inspection " procedure.