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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 416 (5.7L CNG - DTCS P000B To P0203 - 2500 Hd) >> Diagnosis And Testing >> P0140-O2 Sensor 1/2 No Activity Detected >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2013 RAM 2500 HD and 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) must see the Oxygen Sensor signal voltage switch both above and below a calibrated threshold during monitoring. In gasoline mode the voltage must go above 0.569 and below 0.471 volts. In CNG mode the voltage must go above 0.784 and below 0.529 volts. If the PCM does not see the O2 Sensor voltage go above and below the set parameters for a five minute period during monitoring in either mode, a fault is set. Two Trip Fault.

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