The P0099 trouble code indicates an intermittent issue within the intake air temperature sensor 2 circuit. This code typically points to sporadic problems with the sensor responsible for measuring the temperature of the incoming air, affecting the engine’s performance and fuel efficiency.
Intake Air Temperature Sensor 2 Circuit Intermittent
Code symptoms P0099.
1. Intermittent engine performance issues.
2. Occasional rough idling or stalling.
3. Fluctuating fuel efficiency.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0099.
1. Faulty intake air temperature sensor.
2. Intermittent wiring or connector issues within the sensor circuit.
3. Intermittent problems with the Engine Control Module (ECM).
Code Solutions P0099.
1. Inspect and replace the intake air temperature sensor if it is faulty.
2. Check for any intermittent wiring or connector issues in the sensor circuit and repair as needed.
3. If intermittent ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.