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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 718 (5.7L CNG - DTCS P060B To P2128 - 2500 Hd) >> Diagnosis And Testing >> P1657-Alternative Fuel Rail/System Temperature - Too High >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The CNG Rail Temperature Sensor input to the Powertrain Control Module (PCM) is above 140°C (284°F) for 30.0 seconds.