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Home › Chevrolet › 2011 › Impala Police › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 3.9L - DTC P0010 Through DTC P0340 › DTC P0112 or P0113 › Circuit/System Verification

Circuit/System Verification

  1. Ignition OFF for 8 hours or greater.
  2. Ignition ON, observe the scan tool IAT and ECT sensor parameters. The ECT, IAT, and ambient temperatures should be within 15°C (27°F) of each other.
  3. Engine running, observe the scan tool IAT Sensor parameter. The reading should be between -39 to +120°C (-38 to +248°F), depending on the current ambient temperature and the vehicle operating conditions.
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