Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks that the sensor checking the temperature of the air going into the engine is reading too low on one side of the engine.
The P00A2 code is triggered when the Engine Control Module (ECM) detects a low voltage signal from the charge air cooler temperature sensor in bank 2, indicating a possible issue with the sensor or its circuit.
The charge air cooler temperature sensor measures the temperature of the air after it has been cooled by the intercooler. Bank 2 refers to the side of the engine that does not contain cylinder 1. A low circuit signal indicates that the sensor is reading a temperature lower than expected, which could be due to a sensor fault, wiring issue, or other related problems.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty charge air cooler temperature sensor
• Damaged or corroded wiring or connectors
• Faulty ECM
ECM: Engine Control Module, the computer that controls engine functions.
Intercooler: A device that cools the air compressed by the turbocharger before it enters the engine.
• Use an OBD-II scanner to confirm the code.
• Inspect the charge air cooler temperature sensor and its wiring for damage.
• Test the sensor's resistance and voltage output.
• Replace the charge air cooler temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect and maintain sensor connections.
• Ensure the intercooler is functioning properly.
• Perform routine engine diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure about DIY repairs.
Check with your vehicle manufacturer for specific warranty coverage on sensors.
This code has been reported in vehicles with turbocharged engines where the charge air cooler system is critical for performance.
Moderate – It may not cause immediate damage but can affect engine performance and efficiency.
Driving with a malfunctioning sensor can lead to increased emissions and may not comply with emissions regulations.
• Engine at operating temperature
• Vehicle in a safe testing environment
The charge air cooler temperature sensor is typically located near the intercooler or intake manifold on bank 2 of the engine.
Q: Can I drive with a P00A2 code?
A: While the car may still run, it's not recommended to drive for long periods as it can lead to reduced performance and efficiency.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the sensor and its connections can help prevent this code.
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