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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Controls And Fuel - 2.4L - DTC P0628 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Fuel Injector Solenoid Coil Test >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • The resistance test must be performed at the fuel injector or mis-diagnosis will occur.
  • The DMM and test leads must be calibrated to 0 in order to prevent mis-diagnosis.
  1. Remove the intake manifold and disconnect the appropriate Q17 Fuel injector.
  2. Test for 1.9-2.3 at 20°C (68°F) between the high voltage supply circuit terminal 2 and the high voltage control circuit terminal 1 at the fuel injector.
    • If not within the specified range, replace the Q17 Fuel injector.
  3. Measure the resistance between each terminal at the Q17 Fuel injector and the Q17 Fuel injector housing/case. The DMM should display OL.
    • If less than the specified value, replace the Q17 Fuel injector.
  4. If the injectors measure OK, perform the Fuel Injector Balance Test. Refer to Fuel Injector Balance Test .
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