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Home >> Oldsmobile >> 2003 >> Bravada AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 4.2L >> Diagnostic Tests >> DTC P1171: Fuel System Lean During Acceleration >> Test Description

Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 2 -  When the system is operating correctly, the HO2S 1 voltage should toggle greater than and less than the bias voltage. You may need to operate the vehicle within the Freeze Frame conditions and Conditions for Setting the DTC in order to duplicate the malfunction that was detected by the PCM.
  2. 5 -  The specified value is what is measured on a correctly operating system.

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