Intake Manifold Temperature Sensor

The intake manifold temperature sensor measures the temperature of air entering the engine. If it detects a temperature outside the expected range, it triggers this code.

The engine control module (ECM) expects the intake air temperature to be between 0°C (32°F) and 50°C (122°F) during normal operation. If the sensor reads below -40°C (-40°F) or above 120°C (248°F), it triggers a fault code.

Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.

1. 1Inspect the wiring and connector for the intake manifold temperature sensor. Look for any damage or corrosion. Decision: If damaged, repair or replace.
2. 2Check the intake manifold temperature sensor using a multimeter. It should display resistance that corresponds to the temperature (0°C = 10kΩ, 50°C = 5kΩ). Decision: If outside expected values, replace the sensor.
3. 3Use a scan tool to monitor the intake manifold temperature sensor reading while the engine is running. It should match the ambient temperature. Decision: If not, further investigate wiring or ECM issues.

• Faulty intake manifold temperature sensor
• Wiring issues (shorts, breaks, corrosion)
• Loose or damaged connectors
• Environmental factors affecting sensor reading

$$ (100-300)