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Home >> Cadillac >> 2007 >> XLR V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.4L - DTC P0171 To DTC 00700 >> DTC P0197 or P0198 >> Circuit/System Verification

Circuit/System Verification

IMPORTANT: Perform this verification procedure only if the ignition has been OFF for 10 hours or more.

Ignition ON, observe the scan tool IAT Sensor, EOT Sensor and ECT Sensor parameters. The readings should be within 15°C (27°F) of each other and also the ambient temperature.

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