OBD-II code · Powertrain (generic)
P0127 Intake Air Temperature Too High
Intake air temperature exceeds the safe maximum. Risk of preignition or knock; ECU may reduce power.
Is it safe to drive with P0127?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyIntercooler airflow blocked
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–4 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Iat Sensor, Intercooler, Cooling System
Related codes
- P0124Throttle/Pedal Position Sensor "A" Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
- P0126Insufficient Coolant Temperature for Stable Operation
- P0128Coolant Thermostat Below Regulating Temperature
- P0129Barometric Pressure Too Low
- P012ATurbocharger/Supercharger Inlet Pressure Sensor A Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.