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DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P00E2
P00E2 indicates that the powertrain control module (PCM) has detected an intermittent or erratic signal from the charge air cooler (CAC) coolant temperature sensor A. This sensor monitors the temperature of the coolant that circulates through the air-to-liquid charge air cooler, and the PCM uses that data to protect the engine from overheating and to optimize combustion; an erratic signal means the voltage from the sensor is jumping around or dropping out unpredictably rather than reporting a steady temperature.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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