What causes P1112 on a Honda?

Intake air temperature sensor drifting low Short in the intake air temperature sensor harness Corroded or moisture-bridged sensor connector

How do I fix P1112 on a Honda?

Confirm the code and check for related faults Inspect the sensor and connector for corrosion and moisture Measure the sensor circuit for a short to ground Compare the sensor reading to ambient air temperature Replace the sensor if it tests out of spec Clear the code and retest

P1112 The engine control module saw the intake air temperature sensor signal intermittently low

Q: What does P1112 mean on a Honda?

P1112. The engine control module saw the intake air temperature sensor signal intermittently low. The module may misjudge air density and the engine can idle or run poorly.. Applies to Honda and Acura models that use this code.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Honda and Acura models that use this code

What does P1112 mean on a Honda?

P1112. The engine control module saw the intake air temperature sensor signal intermittently low. The module may misjudge air density and the engine can idle or run poorly.. This Honda-enhanced code applies to Honda and Acura models that use this code.

Common causes of P1112

Intake air temperature sensor drifting low
Short in the intake air temperature sensor harness
Corroded or moisture-bridged sensor connector

How to fix P1112

Confirm the code and check for related faults
Inspect the sensor and connector for corrosion and moisture
Measure the sensor circuit for a short to ground
Compare the sensor reading to ambient air temperature
Replace the sensor if it tests out of spec
Clear the code and retest

Sources and review

Checked against two independent sources.
Last updated 2026-10-10.