Faulty intake air pressure sensor on bank 2; Wiring issue such as an open, short, or high resistance in the sensor circuit; Corroded or loose electrical connector at the sensor or PCM; Vacuum leak or intake air leak affecting bank 2 pressure readings; Contaminated sensor element due to oil or carbon buildup; Failed PCM (rare, but possible if all other causes are ruled out)

DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P00E6

P00E6Intake Air Pressure Measurement System - Multiple Sensor Correlation Bank 2

P00E6 indicates that the engine control module has detected a correlation error among multiple intake air pressure sensors on bank 2, meaning the pressure readings from those sensors do not agree with each other or with expected values under the current operating conditions. The computer compares the signals from the bank 2 intake air pressure sensors and sets this code when the difference exceeds a calibrated threshold for a set time.

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
Rough idle or stumbling, especially when the engine is cold
Reduced engine performance or hesitation during acceleration
Poor fuel economy due to incorrect air mass calculation
In rare cases, the engine may enter limp mode or exhibit surging
Often no symptoms besides the warning light, particularly if the sensor error is minor

Common causes, most likely first

Faulty intake air pressure sensor on bank 2
Wiring issue such as an open, short, or high resistance in the sensor circuit
Corroded or loose electrical connector at the sensor or PCM
Vacuum leak or intake air leak affecting bank 2 pressure readings
Contaminated sensor element due to oil or carbon buildup
Failed PCM (rare, but possible if all other causes are ruled out)

How to diagnose and fix it

Perform a visual inspection of the bank 2 intake air pressure sensor, its connector, and wiring for damage or corrosion
Use a scan tool to check live data from all intake air pressure sensors and compare readings with key on, engine off and at idle
Check for technical service bulletins (TSBs) or manufacturer-specific diagnostic procedures for this code
Test the sensor reference voltage and ground circuits with a multimeter to ensure they meet specifications
Inspect the intake manifold and vacuum lines for leaks that could cause pressure discrepancies
Swap the bank 2 sensor with a known-good sensor of the same part number (if accessible) to see if the code follows the sensor
If all tests indicate a faulty sensor, replace it and clear the code; if wiring is faulty, repair as needed

Before you replace the bank 2 sensor

A vacuum leak or unmetered air entering the intake can cause pressure readings to diverge, so always check for leaks before condemning a sensor.
The code may be set by a sensor that is slow to respond rather than completely failed, which live data graphing can reveal.
Corroded pins in the connector are a frequent culprit, especially on vehicles exposed to road salt or moisture.
Bank 2 sensor correlation errors can sometimes be caused by a failing bank 1 sensor if the PCM uses cross-correlation logic, so verify all sensor readings.
After repairs, a drive cycle with specific conditions (steady speed, varying load) is often needed to confirm the fix and prevent code recurrence.

Can I keep driving with P00E6?

You can generally continue driving with this code, but avoid aggressive acceleration or heavy loads until it is diagnosed, as incorrect air pressure readings may affect fuel mixture and emissions. If the engine runs poorly or enters limp mode, seek service promptly.

Tools that help

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