Fuel and air

P00E6 — Intake Air Pressure Sensor Correlation, Bank 2

Severity: medium Drive with care, to a shop

What P00E6 means

The engine control unit compares signals from several intake air pressure sensors on bank 2, such as a boost pressure sensor and a manifold pressure sensor. On a healthy engine their readings stay close to each other for the current operating conditions. When the difference is too large, the ECU can't trust its airflow data, stores P00E6 and turns on the check engine light.

Symptoms

  • Check engine light on
  • Rough idle
  • Hesitation when accelerating
  • Weak acceleration or reduced power
  • Worse fuel economy

Possible causes

  1. Failed intake air pressure sensor on bank 2
  2. Vacuum or intake leak in hoses, ducts or boost piping
  3. Damaged wiring, corroded pins or a loose sensor connector
  4. Dirty or clogged sensor port
  5. ECU software fault or internal failure (rare)

How to diagnose

  1. Scan all codes and freeze frame data, and look for other pressure or airflow codes
  2. Inspect the bank 2 sensor connectors and wiring for damage, moisture and corrosion
  3. Inspect intake ducts, clamps and vacuum hoses for cracks and leaks
  4. With the key on and engine off, compare the sensor readings in live data; they should be near ambient pressure
  5. With the engine running, watch how each reading changes with RPM and find the sensor that lags or sticks
  6. Test the 5 V reference, ground and signal wire at the sensor with a multimeter
  7. Check for ECU software updates before suspecting the unit itself

Common fixes

  • Replace the faulty bank 2 pressure sensor
  • Fix intake or vacuum leaks by replacing hoses, ducts or gaskets
  • Repair wiring or replace the connector
  • Reflash or replace the ECU as a last resort

Questions and answers

What does P00E6 mean?

The ECU found that multiple intake air pressure sensor readings on bank 2 don't agree. The cause may be a bad sensor, an air leak or a wiring problem.

Can I drive with P00E6?

Only a short distance, with care, for example to a shop. Power loss and rough running are possible, so don't put off the diagnosis.

How do I clear P00E6?

A scan tool can erase the code, but it will come back unless the cause is fixed. Find the faulty sensor or air leak first.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.