Fault code P0110 – a step-by-step guide to diagnosing and fixing it

Error code P0110 is displayed and the check engine light is on - what does this mean?

The DTC P0110 indicates that the OBD system has detected a fault in the intake air temperature sensor circuit. This fault code indicates problems with the Intake Air Temperature (IAT) sensor or its electrical connections. This code can be interpreted slightly differently for different manufacturers, but basically relates to the intake air temperature measurement.

What causes can this error code have?

• Defective intake air temperature sensor (IAT)
• Damaged or corroded cable connections to the sensor
• Loose or poor plug connections
• Short circuit in the sensor wiring
• Interrupted power supply to the sensor
• Defective engine control unit (ECU)
• Dirty or clogged air filter

What symptoms occur in parallel with fault code P0110?

• Starting problems: The vehicle may be difficult to start or run erratically
• Increased fuel consumption: The engine does not run optimally and consumes more fuel
• Uneven idling: The engine runs unevenly or stutters when idling
• Reduced engine power: Noticeable loss of power when accelerating
• Black smoke: Dark smoke may be emitted from the exhaust
• Check engine light: The check engine light is permanently illuminated

How can the problem with error code P0110 be rectified?

• Repairing trouble code P0110 requires a systematic approach to identify and rectify the cause.
• Replace the intake air temperature sensor: Replace the defective IAT sensor with a new original part and install it properly
• Repair cable connections: Replace damaged or corroded cables to the sensor and clean all connections
• Check and clean plug connections: Check, clean and firmly connect all electrical connections to the sensor
• Replace air filter: Replace a clogged or dirty air filter with a new one
• Check engine control unit: If there are repeated problems, check the ECU for defects and replace if necessary
• Replace the entire wiring: In the event of multiple cable damage, replace the entire wiring to the IAT sensor