P00EC
Intake Air Temperature Sensor 3 Circuit Intermittent/Erratic Bank 1
Generic OBD-II
Common symptoms
What you'll notice
- Check the wiring harness and connectors connected to the intake air temperature sensor for any loose or damaged connections.
- Inspect the intake air temperature sensor for any signs of damage or malfunctioning.
- Clean the intake air temperature sensor to remove any dirt or debris that may be affecting its performance.
- Reset the ECU (Engine Control Unit) to clear any intermittent errors and see if the issue resolves.
- Replace the intake air temperature sensor if all other solutions fail to fix the problem.
Common causes
Most likely first
- Faulty intake air temperature sensor
- Loose or corroded connection in the intake air temperature sensor circuit
- Intermittent issue with the intake air temperature sensor circuit wiring
- Engine misfire or other internal engine problem causing erratic signal from the sensor
- Faulty engine control module (ECM) or powertrain control module (PCM)
How to diagnose & fix
Work through it in order
- Engine hesitation or stumbling
- Rough idle or stalling
- Decreased fuel efficiency
- Engine misfires or backfires
- Difficulty starting the vehicle
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