Intake Air Temperature Sensor 2 Circuit Bank 1
Generic electrical fault on intake air temperature sensor 2 (typically post-intercooler) on bank 1. The intake air temperature sensor feeds the ECM's density calculation — a drifted reading miscalculates fuel mass and pushes mixture lean (cold reading) or rich (hot reading).
Affected components
- Iat sensor 2
- Sensor wiring
Common causes
- High likelihood: Sensor element failed
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.