01 How to Track Electrical Problems in Your Car with Clear Beg… • 02 The Dangers of Driving on Low Fuel: Risks and Consequences … • 03 Car Warranty Secrets: What Dealers Don't Want You to Know • 04 U0012, U0013, U0014, U0015, U0016, and U0017: Medium Speed … • 05 B0051: Deployment Commanded • 06 P0022 A camshaft position - timing over retarded (Bank 2) • 07 How to tell if your spark plugs are bad: Signs, symptoms, a… • 08 Can a Bad Alternator Cause Power Steering Problems? • 09 Engineers Reveal Why Most Car Doors Are Designed To Rip Apa… • 10 How to Drive Safely on Slippery Roads: A Comprehensive Guide •

DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P007F

P007FCharge Air Cooler Temperature Sensor Bank1/Bank2 Correlation

P007F indicates that the engine control module has detected an implausible relationship between the charge air cooler temperature sensor readings for bank 1 and bank 2, meaning the two sensors disagree by more than the calibrated threshold under the same operating conditions. The computer compares the two signals to verify that both sensors are reporting a consistent post-cooler air temperature, and it sets this code when the correlation falls outside the expected range.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering and auxiliary emission controls

Symptoms you may notice

  • Illumination of the check engine light, often with no other noticeable symptoms
  • Reduced engine power or limp mode in some vehicles when the fault is active
  • Poor fuel economy or slightly rough running during acceleration
  • Inconsistent boost pressure or turbocharger performance felt as hesitation
  • In rare cases, a noticeable loss of power after the intercooler heat-soaks in traffic

Common causes, most likely first

  1. Faulty charge air cooler temperature sensor on bank 1 or bank 2
  2. Damaged or corroded wiring harness or connector at either sensor
  3. Intake air leaks or restrictions affecting one bank's charge air cooler
  4. Charge air cooler internally restricted or externally blocked on one side
  5. Engine control module software calibration issue or outdated firmware
  6. Failed engine control module, though this is uncommon

How to diagnose and fix it

  1. Use a scan tool to record freeze-frame data and compare bank 1 and bank 2 charge air cooler temperature sensor readings with the engine at idle and during a road test
  2. Visually inspect both sensors, their connectors, and the wiring harness for chafing, corrosion, or loose pins
  3. Check for intake air leaks or restrictions between the turbocharger and the charge air cooler on both banks
  4. Perform a resistance or voltage check on each sensor according to the manufacturer's specification and compare the results
  5. Verify that the charge air cooler is not externally blocked by debris or internally restricted by oil sludge or carbon
  6. Reprogram or update the engine control module calibration if a known software issue exists for the vehicle
  7. Replace the faulty sensor or repair the wiring as needed, then clear the code and verify the correlation returns to normal during a test drive

What the correlation code really means

  • A P007F code often sets because one sensor is slow to respond to temperature changes rather than completely failed, so a simple resistance check at room temperature may not reveal the fault.
  • Technicians sometimes replace both sensors unnecessarily when the real problem is a partially restricted charge air cooler on one bank causing a genuine temperature difference.
  • The code can be triggered by a software calibration issue in some vehicles, so checking for technical service bulletins before replacing parts is a smart step.
  • Intake air leaks after the intercooler can cause one bank to run hotter than the other, leading to a correlation fault that mimics a sensor failure.
  • After any repair, a road test with live data monitoring is essential because the code may not reset immediately during idle-only diagnostics.

Can I keep driving with P007F?

You can generally continue driving with this code if the engine runs smoothly and the check engine light is steady, but avoid heavy acceleration or towing until the fault is diagnosed. If the light flashes or you notice a significant loss of power, stop driving and seek professional diagnosis to prevent potential engine damage.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage