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P00E6

Intake Air Pressure Measurement System - Multiple Sensor Correlation Bank 2.

  • Generic
  • Powertrain
  • Generic code
  • Medium severity

How this code is built

P
SystemPowertrain
0
Defined bySAE, the same on every car
0
AreaFuel and air metering, auxiliary emission controls
E6
FaultThe specific fault in that area

What it means

P00E6 is a generic code meaning the engine control unit has found that the intake air pressure sensors on Bank 2 do not agree with each other. The control unit compares the readings from multiple pressure sensors in the intake system, and when the difference is greater than expected for the operating conditions, it sets the fault. Which sensors are compared (for example manifold pressure, boost pressure or throttle inlet pressure) depends on the model and engine.

Symptoms

  • Engine warning light on
  • Reduced power or the car going into limp mode
  • Poor or hesitant acceleration
  • Rough running or an unstable idle
  • Boost pressure lower or higher than normal on turbocharged engines
  • Increased fuel consumption

Possible causes

  • Faulty or contaminated intake pressure or boost pressure sensor on Bank 2 giving an inaccurate readinglikely
  • Air leak in the intake or charge air system on Bank 2, such as a split hose, loose clamp or leaking intercooler pipelikely
  • Damaged wiring, poor connector contact or corrosion in a sensor circuit (signal, reference voltage or earth)possible
  • Blocked or leaking vacuum or pressure sensing line to a sensor, where fittedpossible
  • Boost control fault on turbocharged engines, such as a sticking wastegate, faulty actuator or diverter valve, causing real pressure differencespossible
  • Restricted air filter or intake restriction affecting the pressure readingsrare
  • Fault in the engine control unit or an outdated calibration that is a known cause for the specific modelrare

How to diagnose

  1. Read all stored and pending codes and note the freeze frame data, including engine load, speed and the pressure readings when the fault set.
  2. Check for related codes for boost control, throttle, mass airflow or other pressure sensors, and diagnose those first if present.
  3. Visually inspect the intake and charge air system on Bank 2 for split hoses, loose clamps, oil contamination and damaged pipes.
  4. Inspect the sensor connectors and wiring for corrosion, bent pins, chafing or water ingress.
  5. With the engine off and then running, compare the live data from the pressure sensors. With the engine off and the ignition on, they should read close to atmospheric pressure and agree with each other.
  6. Check the sensor supply voltage, signal and earth against the manufacturer's data for that model.
  7. Smoke test or pressure test the intake and charge air system to find leaks.
  8. Check boost control components, such as the wastegate actuator and its vacuum or electrical supply, following the procedure for the specific engine.

How to fix

  • Replace the faulty pressure sensor once it is confirmed as inaccurate.
  • Repair or replace leaking hoses, pipes, clamps or seals in the intake and charge air system.
  • Repair damaged wiring or connectors, or clean corroded terminals.
  • Clear or replace blocked or perforated sensing lines.
  • Repair or replace faulty boost control components such as the wastegate actuator or diverter valve.
  • Update the control unit software only if the manufacturer lists an outdated calibration as a known cause for this model.

Can I keep driving?

Medium severity

The car can usually be driven carefully for a short time, but power may be limited and a boost or air leak can get worse. Have it diagnosed soon, and stop if the engine runs very roughly or loses power severely.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.