P007E — Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic #

Note: The wording of this DTC may change depending on the vehicle manufacturer.

• Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic (Generic/Most OEMs)
• Intermittent or Erratic Signal from Charge Air Cooler Temp Sensor (Ford)
• Charge Air Cooler Temperature Sensor: Signal Erratic (Mercedes-Benz)
• Intake Air Cooler Temp Sensor Circuit Range/Performance (GM/Chevrolet)

Summary of the P007E Code #

The P007E diagnostic trouble code (DTC) relates to the Charge Air Cooler Temperature Sensor circuit. This sensor, sometimes referred to as the Intercooler Temperature Sensor, monitors the air temperature after it passes through the charge air cooler (often an intercooler) before entering the engine. The Engine Control Module (ECM) or Powertrain Control Module (PCM) relies on this data to optimize fuel injection and turbocharger performance. When the sensor circuit provides intermittent or erratic signals, the system cannot accurately determine the actual temperature, potentially affecting engine efficiency and emissions. This code typically points to a wiring, connection, or sensor issue rather than a simple out-of-range reading.

Common Symptoms for P007E #

A vehicle with a P007E code often exhibits subtle or moderate performance issues. While some drivers may notice clear signs, others might only detect a warning light. Here are the symptoms you’re most likely to notice:

• Check Engine Light (CEL) is illuminated
• Reduced engine power, especially under acceleration
• Noticeable drop in fuel efficiency
• Engine may run rough or hesitate
• Turbo lag or poor throttle response
• Occasional surging or misfiring, particularly in turbocharged engines
• Emission test failure due to abnormal readings

Probable Causes for P007E #

The P007E code is most often triggered by issues in the sensor’s electrical circuit. Here’s what technicians typically find, ranked by likelihood:

1. Loose, corroded, or damaged wiring/connectors at the charge air cooler temperature sensor
2. Faulty charge air cooler temperature sensor itself
3. Intermittent ground connection to the sensor
4. Poor connection at the PCM/ECM (computer) side
5. Moisture intrusion or water damage in the sensor’s harness
6. Shorts to ground or power intermittently in the harness
7. Rarely, a faulty PCM/ECM (internal circuit board issue)

P007E Step-by-Step Diagnostic Guide #

Diagnosing P007E requires a methodical approach to avoid unnecessary parts replacements. Here’s how a professional would typically proceed:

• Scan for additional codes: Look for related DTCs, especially those pointing to intake air or temperature sensors.
• Visually inspect the sensor and wiring: Check for obvious signs of damage, corrosion, or loose connections at the charge air cooler temperature sensor.
• Wiggle test: With the engine running and scanner connected, gently move the sensor’s harness and connectors to see if the code or sensor readings fluctuate.
• Check sensor voltage/resistance: Using a multimeter, verify the sensor’s output matches OEM specifications (consult service manual for expected values at specific temperatures).
• Test continuity/ground: Ensure there’s a solid ground and no open circuits between the sensor and PCM/ECM.
• Inspect for moisture or corrosion: Particularly inside connectors or under harness tape near the intercooler area.
• Substitute with a known good sensor: If all wiring checks pass, swap in a new or working sensor to confirm if the code returns.
• ECM/PCM pin check: As a last resort, verify the integrity of the ECM/PCM input pin and internal circuitry.

Possible Repairs for P007E #

The correct fix always depends on the root cause. Here are the most common repair actions linked to this code:

• Repair or replace damaged wiring/connectors at the charge air cooler temperature sensor
• Replace the charge air cooler temperature sensor if faulty or out of specification
• Clean sensor connector and apply dielectric grease to prevent future corrosion
• Repair or replace corroded/loose ECM/PCM connector pins
• Seal harness to prevent future water intrusion
• Replace ECM/PCM if verified to be defective (very rare)

Can You Drive with Code P007E? #

Limited driving is possible, but not recommended for extended periods. While P007E rarely causes immediate breakdowns, ignoring it can lead to increased engine wear, reduced fuel economy, and potential turbocharger or emission system issues. For turbocharged engines, incorrect air temperature readings can increase the risk of engine knock or over-fueling. It’s best to address the underlying issue as soon as possible to avoid more expensive repairs or possible limp mode activation.

Vehicles Most Commonly Affected by P007E #

While the P007E code can appear on any vehicle equipped with a charge air cooler temperature sensor, it’s most frequently reported on:

• Ford F-Series and Transit (EcoBoost engines)
• Chevrolet Silverado and GMC Sierra (Duramax and turbocharged gas engines)
• Mercedes-Benz Sprinter and GLE (BlueTEC and turbo models)
• Volkswagen TDI (turbo-diesel models)
• BMW 3 and 5 Series (turbocharged engines)
• Ram 2500/3500 (Cummins turbo-diesel)
• Hyundai Santa Fe / Kia Sorento (turbocharged variants)

Common Mistakes & Best Practices with P007E #

Misdiagnosis and hasty repairs can lead to wasted time and money. To avoid common pitfalls:

• Don’t replace the sensor immediately — always inspect wiring and connectors first
• Always check for corrosion or water intrusion before swapping components
• Verify sensor outputs with a scan tool or multimeter against OEM specs
• Use dielectric grease on connectors after repair
• Clear codes and retest after each repair step
• Document all findings for future reference or warranty claims

P007E Quick FAQ #

Q: Will P007E cause my engine to go into limp mode?
A: In most cases, limp mode is unlikely unless the PCM detects further issues. However, some turbocharged vehicles may limit boost or power for protection.

Q: Can a dirty or clogged intercooler cause P007E?
A: Not directly. P007E is an electrical circuit code. However, excessive oil or debris on the sensor could mimic a malfunction, so it’s worth checking.

Q: Is P007E the same as an intake air temperature sensor code?
A: No. The charge air cooler temperature sensor is located after the intercooler, whereas the intake air temperature sensor is typically before the throttle body. Both measure air temperature, but in different locations and for different control strategies.