Common Symptoms
- Check engine light illuminated
- Poor fuel economy
- Rough idle or hesitation
- Black smoke from exhaust
- Engine may run rich
- Reduced engine performance
Most Likely Root Causes
- Shorted intake air temperature sensor 2
- Damaged or chafed wiring harness to IAT sensor 2
- Corroded or loose sensor connector
- Short to ground in sensor circuit
- Failed engine control module
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Component Location
Intake air temperature sensor 2 is typically located in the intake manifold, intercooler outlet, or post-turbocharger intake tract.
Manufacturer Notes
Some vehicles use a dual IAT sensor configuration with sensor 2 monitoring air temperature post-intercooler or in a secondary intake runner.
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