Charge Air Cooler Temperature Sensor Correlation Issue
The P007F code indicates a correlation problem between the charge air cooler temperature sensors on Bank 1 and Bank 2. This typically means the readings from the two sensors differ by more than a specified threshold, often due to a faulty sensor, wiring issue, or actual temperature imbalance in the intake air system. The PCM monitors these sensors to ensure proper air density calculations for fuel delivery and turbocharger control.
01. Most Common Causes
- Faulty charge air cooler temperature sensor (Bank 1 or Bank 2)
- Wiring or connector issues (corrosion, damage, loose connection)
- Restricted or leaking charge air cooler causing temperature imbalance
- PCM software or calibration error
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine performance or power
- Poor fuel economy
- Possible turbocharger boost issues
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to read live data from both charge air cooler temperature sensors and compare readings.
Step 2: Visually inspect wiring and connectors for damage, corrosion, or loose connections.
Step 3: Test sensor resistance and voltage according to manufacturer specifications.
Step 4: Check for intake air leaks or restrictions in the charge air cooler system.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is generally safe for short distances, but reduced performance and fuel economy may occur. Prolonged driving could lead to further issues if the underlying cause is a sensor or wiring problem.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for diagnosis and sensor replacement, but can be higher if wiring repairs or PCM updates are needed.