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Home >> Pontiac >> 2006 >> Solstice Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.4L - DTC P0010 To DTC P0340 >> DTC P0201-P0204 >> Circuit/System Testing

Circuit/System Testing

  1. Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .
  2. Disconnect the fuel injector.
  3. With the ignition ON, engine OFF, probe the ignition 1 voltage circuit of the fuel injector with a test lamp that is connected to a good ground. The test lamp should illuminate.
    • If the test lamp does not illuminate, repair the open or the high resistance in the ignition 1 voltage circuit.
  4. Connect the J 44603  into the fuel injector connector. Start the engine.
    • If the test lamp flashes, test for an intermittent or a poor connection at the fuel injector, or a faulty fuel injector.
    • If the test lamp does not flash, test for an open, high resistance, or a short to voltage in the control circuit of the fuel injector, an intermittent or poor connection at the engine control module (ECM), or a faulty ECM.
    • If the test lamp remains illuminated at all times, test for a short to ground in the control circuit of the fuel injector, or a faulty ECM.
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