Fuel and air

P00E7 — Intake Air Temperature Sensor Correlation Fault, Bank 2

Severity: medium Drive with care, to a shop

What P00E7 means

The engine control module compares the intake air temperature readings on bank 2 with each other and with other data, such as coolant and ambient temperature. Air temperature is used to calculate air density, fuel delivery and ignition timing. When the readings disagree by more than expected, the ECM sets P00E7 and turns on the check engine light.

Symptoms

  • Check engine light on
  • Reduced power or hesitation when accelerating
  • Rough idle
  • Worse fuel economy
  • Harder starting in some conditions

Possible causes

  1. Failed bank 2 intake air temperature sensor
  2. Damaged wiring or connector: corrosion, open circuit, short or loose pin
  3. Intake air leak skewing the readings
  4. Faulty related sensor used for comparison (MAF, manifold pressure)
  5. ECM or software fault (uncommon)

How to diagnose

  1. Scan all codes and review freeze frame data, noting any related codes
  2. Inspect the bank 2 IAT sensor connector and harness for damage, corrosion and a secure fit
  3. With a cold engine, compare all IAT readings with coolant and ambient temperature; they should be close
  4. Compare bank 1 and bank 2 IAT values on a warm engine and at different rpm
  5. Measure sensor resistance and compare it with the manufacturer's chart at a known temperature
  6. Check the supply voltage, ground and wiring continuity to the ECM for opens or shorts
  7. Inspect intake ducts, clamps and gaskets for air leaks
  8. Clear the code and see whether it returns

Common fixes

  • Replace the bank 2 intake air temperature sensor
  • Repair the wiring or replace the damaged connector
  • Fix intake leaks by replacing the hose, clamp or gasket
  • Replace a faulty related sensor (MAF, manifold pressure)
  • Update the ECM software if the manufacturer offers it

Questions and answers

What does P00E7 mean?

The ECM detected that intake air temperature readings on bank 2 do not agree with each other. A sensor, its circuit or a related reading is giving bad data.

Can I drive with P00E7?

Briefly and carefully, for example to a shop. The mixture may be miscalculated, causing hesitation and higher fuel use, so get it diagnosed soon.

Is replacing the sensor enough?

Not always. Check the connector, wiring and intake for leaks first, since the fault is often there rather than in the sensor itself.

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.