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Home >> Pontiac >> 2009 >> G5 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.2L - DTC P0010 To DTC P0366 >> DTC P0016 or P0017 >> Circuit/System Testing
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Circuit/System Testing

NOTE: Incorrect engine oil viscosity, aftermarket engine oil additives, or engine oil that is overdue for changing, can greatly affect the performance of the camshaft actuator.
  1. Ignition OFF, inspect the crankshaft balancer bolt for the proper torque. Refer to Fastener Tightening Specifications (2.2L) .
  2. Remove the CMP actuator solenoid. Refer to Camshaft Position Actuator Solenoid Valve Replacement .
  3. Connect a fused jumper wire between the CMP actuator high control circuit terminal A at the solenoid and B+. Connect a jumper wire to the CMP actuator low reference circuit terminal B at the solenoid. Momentarily touch the jumper wire to ground. Observe the spool valve inside the CMP actuator. The spool valve should move from fully closed to fully opened position.
    • If the spool valve inside the CMP actuator solenoid does not move, replace the CMP actuator solenoid.
  4. Inspect the CMP actuator for binding or being stuck.
  5. Inspect the engine for the following conditions:
    • An incorrectly installed camshaft sensor
    • An incorrectly installed crankshaft sensor
    • An incorrectly installed camshaft actuator
    • Incorrect valve timing
    • A loose camshaft reluctor wheel
    • A loose crankshaft reluctor wheel
    • Excessive crankshaft end play
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