P007F — Charge Air Cooler Temperature Sensor Bank1/Bank2 Correlation

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution A short trip to a repair shop is generally reasonable if power, boost, and charge-air temperatures remain stable. Stop driving if charge-air temperature rises abnormally, power drops sharply, smoke appears, or an oil or coolant warning is displayed, because these symptoms can indicate a problem beyond the P007F sensor correlation.

Typical symptoms

The check-engine light may illuminate with P007F stored in the powertrain control module.
Scan-tool live data may show the bank 1 and bank 2 charge-air-cooler temperatures remaining unreasonably far apart.
The engine may run normally because P007F primarily identifies a sensor correlation deviation rather than a complete loss of operation.
Reduced power, hesitation, inconsistent boost, or elevated charge-air temperatures may occur if an inaccurate sensor affects boost control.
A rapid charge-air temperature increase or unstable boost reading can indicate that the condition should be investigated promptly.

Common causes

One of the bank 1 or bank 2 charge-air-cooler temperature sensors has drifted or produces an inaccurate signal, causing the P007F correlation mismatch.
Damaged wiring, an open circuit, a short circuit, or high-resistance connector pins can make the two charge-air temperature readings differ.
A charge-air temperature sensor may be loose, incorrectly positioned, contaminated, or installed with an incompatible replacement.
Restricted charge-air-cooler passages, debris, or uneven airflow between the two sides can create a legitimate bank-to-bank temperature difference.
An intake air leak, turbocharger fault, or uneven boost delivery can heat one side of the charge-air system more than the other and trigger P007F.

How to diagnose with an OBD scanner

Read P007F live data Connect an OBD scanner such as ELM327 or AIScanAuto, confirm P007F, and review freeze-frame data. If supported, compare bank 1 and bank 2 charge-air-cooler temperature readings while the engine is warm and under load.
Inspect the sensors and connectors Check both charge-air temperature sensors for correct seating, damaged housings, and oil or carbon contamination. Inspect the connector pins and wiring for corrosion, broken strands, pin-back damage, and chafing.
Check charge-air delivery Inspect the accessible charge-air cooler, intake pipes, and turbocharger outlets for blockage, leakage, loose joints, or damaged ducts. Compare conditions at both sides because an airflow imbalance can produce a real temperature difference.
Perform electrical testing Test each sensor's resistance, supply or reference voltage, and ground circuit against service specifications. Conduct a wiggle test while monitoring the readings to expose an intermittent open or short that could set P007F.
Repair and verification Replace only the sensor or repair the wiring fault indicated by testing. Clear P007F, complete a warmed-up road test, and verify that the two bank readings converge. If they remain different, continue tracing the charge-air and turbo systems before considering an ECM issue.

Approximate repair cost

A typical independent-shop estimate is USD 150-450 for diagnosis and one charge-air-cooler temperature sensor or a wiring and connector repair. If charge-air-cooler removal or replacement becomes necessary, the total may reach USD 700-1,500. These figures are estimates and vary by region, vehicle access, and parts availability.

Common questions

Does P007F mean both charge-air temperature sensors failed?

Not necessarily. P007F indicates that the bank 1 and bank 2 charge-air-cooler temperature signals do not correlate, and one drifting sensor or damaged wire can create that condition by itself.

Can I safely drive with P007F stored?

You can usually make a cautious short trip if the engine runs smoothly and boost or charge-air temperature remains normal, but persistent P007F should be diagnosed because inaccurate temperature signals can affect boost control.

How do I confirm the P007F correlation fault?

Use an OBD scanner to display both bank charge-air temperatures. Warm the engine, apply controlled load, and compare the readings; an unreasonable or persistent difference supports the P007F diagnosis.

Should both charge-air temperature sensors be replaced together?

Not automatically. Testing should identify which sensor or circuit is inaccurate, and replacing both sensors without diagnosis may leave the underlying P007F condition, such as uneven airflow or a wiring fault, in place.

P007F is a powertrain-related OBD2 trouble code that flags a disagreement between two charge air cooler temperature sensors—one monitoring bank 1 and the other monitoring bank 2. Turbocharged and supercharged engines rely on charge air coolers (sometimes called intercoolers) to lower the temperature of compressed air before it enters the cylinders. The engine control unit uses these temperature readings to adjust fuel delivery, boost levels, and ignition timing for optimal performance and emissions.

When the two sensor readings drift apart by more than the expected tolerance, the ECU recognizes this as a correlation fault. For example, if bank 1 reports 85°F while bank 2 reports 120°F under identical operating conditions, that mismatch triggers P007F. The module stores the code once this inconsistency persists long enough to meet its diagnostic threshold, and it captures freeze frame data showing engine speed, load, temperature, and vehicle speed at the moment of failure. This snapshot is your starting point for diagnosis.

Common symptoms of P007F

Check Engine Light illuminates on the dashboard
Fuel consumption climbs above normal in some cases
Reduced engine performance or limp-home mode activation
The charge air cooler system operates intermittently or shuts down entirely
In rare cases, no noticeable symptoms besides the stored code

What causes P007F?

The underlying issue typically stems from one of these conditions:

Faulty charge air cooler temperature sensor on bank 1 or bank 2
Corroded, loose, or physically damaged connector at the sensor harness
Open or shorted wiring in the affected circuit
Poor ground connection at the sensor or control module
Blown fuse supplying power to the circuit
Failed control module driver responsible for processing the sensor signal

How to diagnose P007F

Follow these steps to isolate the root cause before replacing any parts:

Connect an OBD2 scanner, confirm P007F is stored, and record the freeze frame data. This data reveals exactly what engine conditions existed when the fault triggered.
Pull all related trouble codes. Coexisting codes often point directly to the failed component. Check manufacturer TSBs for your specific make and model—some P0xxx codes have factory-released software updates or technical service bulletins.
Perform a visual inspection of the wiring harness and connectors for the charge air cooler temperature sensors. Look for chafed insulation, bent pins, corrosion buildup, or signs of moisture intrusion.
Measure reference voltage, ground integrity, and signal continuity at the sensor connectors using a multimeter. Compare your readings against manufacturer specifications.
Conduct a wiggle test on the harness while monitoring live data. Any signal dropouts or erratic readings indicate broken wires inside the insulation.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and verify P007F does not return.

Repair options and costs

Address the most common and affordable failures first to avoid unnecessary expenses:

Repair wiring or connectors: $80–$250
Replace faulty charge air cooler temperature sensor: $150–$500
Control module repair or replacement: $300–$1,000

How much does it cost to fix P007F?

The total repair bill hinges entirely on which component triggered the correlation fault. At independent shop rates in the United States, expect to pay between $80 and $250 for harness or connector repairs, $150 to $500 for a replacement sensor, and $300 to $1,000 if the control module itself requires attention. An accurate diagnosis before purchasing parts is the single most effective way to keep costs reasonable—the expensive scenario is rarely where you should start looking.

Can you drive with P007F?

In most vehicles, P007F does not immobilize the car. You may notice slightly increased fuel consumption, diminished power under load, or a disabled auxiliary cooling function, but forward motion remains possible. That said, treat this code as urgent if you experience stalling, failure to start, or warnings affecting your brakes or steering. Otherwise, schedule diagnostic work within a reasonable timeframe to prevent potential secondary damage.