Charge Air Cooler Temperature Sensor Circuit Bank 1 (P007A)
The P007A code indicates a problem with the charge air cooler temperature sensor circuit for bank 1. This sensor monitors the temperature of the air entering the engine after the intercooler. The Powertrain Control Module (PCM) detects that the sensor signal is out of the expected range or there is an electrical fault in the circuit. This can lead to incorrect air-fuel mixture, reduced engine performance, and potential damage if not addressed.
01. Most Common Causes
- Faulty charge air cooler temperature sensor
- Open or shorted wiring in the sensor circuit
- Poor electrical connection at the sensor connector
- Corroded or damaged sensor connector pins
- Failed PCM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power and acceleration
- Poor fuel economy
- Engine may run rough or hesitate
- Possible black smoke from exhaust (rich condition)
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for additional codes.
Step 2: Visually inspect the charge air cooler temperature sensor and its wiring for damage, corrosion, or loose connections.
Step 3: Test the sensor's resistance with a multimeter and compare to manufacturer specifications.
Step 4: Check the sensor's voltage signal at the PCM connector with the engine running.
Step 5: If sensor and wiring are okay, test the PCM for proper operation (rare).
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances with this code as it can cause poor engine performance and potential damage to the catalytic converter due to incorrect air-fuel mixture.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for parts and labor, depending on the cause. A sensor replacement is usually around $80-$120.