FixVault
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Alfa Romeo
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2017
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Giulia Base, AWD
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Repair and Diagnosis
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Engine Performance
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System
›
2.0L - DTCS P0112-00 To P024B-00
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DTC Troubleshooting
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P0140-00-O2 Sensor 1-2 Signal Inactive
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the O2 signal voltage does not switch lean or rich during monitoring for at least 150 seconds.