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Home >> Saturn >> 2006 >> Relay 3.9 1, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.9L - DTC P0010 To DTC P0420 >> DTC P0335 or P0336 >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

  1. With the ignition OFF, inspect the engine wiring harnesses carrying the CMP sensor circuits for the following conditions
    • Close routing of secondary ignition wires
    • Close routing of aftermarket electrical equipment
    • Close to solenoids, motors, and relays
    • Correct any wire harness routing or component placement conditions, if it is determined to be a possible source of electrical interference.
  2. With the engine running, observe the Engine Speed parameter using the scan tool. Operate the engine from idle up to 3000 RPM. The Engine Speed parameter should match the CMP Sensor parameter within 100 RPM.
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