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Home >> Pontiac >> 2009 >> Vibe Base, 1.8 8, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 1.8L (Lay) - DTC P0010 To DTC P0420 >> DTC P0136-P0139 >> Circuit/System Verification

Circuit/System Verification

    IMPORTANT: To ensure the HO2S 2 is active, operate the engine at 2,000-2,500 RPM for 2 minutes, before performing the following verification.
  1. Engine running at normal operating temperature and the exhaust system hot, observe the scan tool HO2S 2 voltage parameter. The reading should fluctuate between 250-650 mV.
  2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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