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Home >> Pontiac >> 2001 >> Firebird Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0140: Ho2S Circuit Insufficient Activity - Bank 1, Sensor 2 >> Code Enable Criteria
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Code Enable Criteria

For DTC to run, the following conditions must be met:

DTC will set when post-catalst HO2S signal voltage remains at 412-490 mV during normal closed loop operation and Accelerator Pedal Position (APP) sensor indicated angle change is more than 1.5 percent at least 6 times.