P007E medium Severity

P007E: Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic (Bank 1)

Illuminated check engine light; potential reduced engine power and fuel economy; possible limp mode activation

Overview

P007E OBD-II Charge Air Cooler Temperature Sensor Circuit Intermittent Bank 1 turbo intercooler temp sensor erratic

Common Symptoms

  • Check Engine Light illuminated
  • Reduced engine power or throttle response
  • Poor fuel economy
  • Rough idle or hesitation
  • Possible limp mode activation

Most Common Causes

Faulty charge air cooler temperature (CACT) sensor high

Most frequently identified root cause across diagnostic references

Damaged or corroded wiring/connectors in the sensor circuit high

Loose/poor connections can cause intermittent signals triggering P007E

Intermittent ground or open circuit in sensor harness medium

Electrical harness faults often produce erratic sensor readings

Faulty Powertrain/Engine Control Module (PCM/ECM) low

Rare cause; only after ruling out sensor and wiring faults

Diagnostic Steps

  1. Use OBD-II scan tool to confirm P007E and view live data for the charge air cooler temperature sensor
    Expected: Intermittent or fluctuating temperature values when monitored
    Interpretation: Erratic readings confirm sensor circuit inconsistency
  2. Visually inspect sensor wiring harness and connectors for damage or corrosion
    Expected: No frayed wires, corrosion, or loose pins
    Interpretation: Problems here likely causing circuit intermittence
  3. Test reference voltage at sensor harness with ignition ON
    Expected: Stable reference around 5 volts
    Interpretation: Absent or unstable reference indicates wiring/PCM issues
  4. Measure sensor resistance across terminals with multimeter
    Expected: Resistance decreases smoothly with warming engine
    Interpretation: Static or abnormal change suggests faulty sensor
  5. Check ground continuity from sensor harness to PCM and chassis ground
    Expected: Low ohm continuity
    Interpretation: High resistance/open circuit indicates ground fault

Repair Solutions

Replace charge air cooler temperature sensor medium
Estimated Cost: $100 - $400

Typical fix when sensor fails or gives erratic outputs

Repair or replace damaged wiring/connectors medium
Estimated Cost: $50 - $250

Cost varies with extent of harness repair

Verify and repair ground circuit medium
Estimated Cost: $20 - $150

Loose or corroded ground connections can trigger code

PCM/ECM diagnostic and reprogram or replacement hard
Estimated Cost: $500 - $2000

Only after all sensor and wiring faults are excluded

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Intake air temperature sensor faults
  • Boost pressure sensor errors
  • Turbocharger mechanical issues

Frequently Asked Questions

Can you explain the meaning of P007E?

When your OBD-II scanner reads P007E, it means: Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic (Bank 1). This code is related to the vehicle's Air Intake.

Should I stop driving if I have P007E?

The P007E code is considered medium severity. Illuminated check engine light; potential reduced engine power and fuel economy; possible limp mode activation

What are the symptoms of P007E?

You may experience the following: Check Engine Light illuminated, Reduced engine power or throttle response, Poor fuel economy.

What parts fail when P007E is set?

The most common causes are: Faulty charge air cooler temperature (CACT) sensor, Damaged or corroded wiring/connectors in the sensor circuit, Intermittent ground or open circuit in sensor harness.

Is P007E expensive to fix?

Repair costs depend on the specific failure. A simple Verify and repair ground circuit replacement is relatively affordable ($20-$150), whereas a PCM/ECM diagnostic and reprogram or replacement repair is more expensive, potentially reaching $2000.

Does code P007E apply to BMW vehicles?

Yes, P007E is a generic code that applies to all OBD-II compliant vehicles, including Ford, Toyota, Honda, Chevrolet, Nissan, Dodge, BMW, and more.

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