P00E7
Intake Air Temperature 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
- E7
- FaultThe specific fault in that area
What it means
P00E7 is the generic code for a correlation fault between the intake air temperature sensors on bank 2. The engine control unit compares the readings from more than one intake air temperature sensor that serve that bank and sets the code when they disagree by more than expected, allowing for engine conditions and temperature. It is mostly seen on engines with several intake air temperature sensors, such as turbocharged or charge-cooled engines, and the exact sensor locations depend on the model and engine.
Symptoms
- Engine warning light on
- Poor or hesitant acceleration
- Rough running or uneven idle
- Reduced power or limp mode on some models
- Poor fuel economy
- Hard starting when hot or cold on some engines
Possible causes
- Faulty intake air temperature sensor on bank 2 giving a drifting or biased readinglikely
- Wiring damage, chafing or corrosion in the sensor circuit (open circuit, high resistance or short)likely
- Poor connector contact, water ingress or loose pins at a sensor or control unit pluglikely
- Heat soak or a restricted charge air cooler or intake path causing a genuine temperature difference between sensorspossible
- Air leak or damaged intake or boost pipe near a sensor affecting its readingpossible
- Faulty reference voltage or earth supply shared by the sensorspossible
- Engine control unit fault or outdated softwarerare
How to diagnose
- Read all stored and pending codes and the freeze frame data, noting engine temperature, load and speed when the fault set. Check for other intake or sensor codes.
- Visually inspect the bank 2 intake air temperature sensors, their connectors and wiring for chafing, heat damage, corrosion, water ingress and loose fitment.
- With the engine cold and left to stand, compare live readings from all intake air temperature sensors and the coolant temperature. They should be close to each other.
- Run the engine and watch the readings change. Look for one sensor that is slow, stuck, or jumps about when the wiring is gently moved.
- Check the intake and boost pipes, clamps and charge air cooler for leaks, splits, blockage or oil contamination near the sensors.
- Test the sensor resistance against the manufacturer's temperature table, and check the circuit for continuity, short circuits, and correct reference voltage and earth.
- Check for any applicable software updates or technical bulletins for the specific model and engine.
How to fix
- Replace the faulty bank 2 intake air temperature sensor once testing confirms it is out of range or biased.
- Repair or replace damaged wiring and terminals, then secure the loom away from heat and rubbing.
- Clean, dry and re-seat connectors, or renew them if the pins are corroded or loose.
- Repair leaks or splits in the intake or boost pipes and renew faulty clamps or seals.
- Clear a blocked or contaminated charge air cooler or intake path as the model requires.
- Update the control unit software only where the manufacturer lists an outdated calibration as a known cause.
Can I keep driving?
The car can usually be driven carefully for a short time, but the engine may run poorly or limit power. Get it checked soon, as wrong temperature data can affect fuelling and timing and may lead to further faults.
Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.