Skip to main content
Diagnose/P0127
P0127Medium SeverityFuel System

Intake Air Temperature Too High

What This Means

The intake air temperature sensor is reporting excessively high air temperatures entering the engine. Hot intake air reduces engine power and can cause detonation.

Common Symptoms

  • Reduced power
  • Engine knock
  • Poor performance
  • Check engine light on

Common Causes

  • Heat soak from exhaust
  • Blocked air intake path
  • Missing heat shield
  • Hot air ducting issue
  • Faulty IAT sensor

Estimated Repair Cost

$50 – $250
Parts and labor (varies by vehicle and location)
Difficulty:Easy

Need This Fixed?

Find certified mechanics near you who can diagnose and repair P0127.

Find a Shop Near You

For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.