OBD2 Error Code P0110: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
Error Code
P0110
Brand
OBD2
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
OBD2 error code P0110 indicates a malfunction in the intake air temperature (IAT) sensor circuit. This sensor measures the temperature of air entering the engine to help the engine control module optimize the fuel-air mixture. When this circuit fails, your engine may run poorly, have reduced fuel economy, or fail emissions tests.
Ad

Tools You'll Need

How to Fix Error Code P0110

  1. Turn off engine and ensure safety

    Always work on a cool engine to prevent burns from hot components
  2. Locate the intake air temperature sensor

  3. Inspect the wiring harness

  4. Test sensor resistance

  5. Check circuit voltage

    Do not start the engine during voltage testing
  6. Replace faulty components

  7. Clear codes and test drive

Parts You May Need

Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Intake air temperature sensor
Check Price on Amazon
Electrical wire and connectors
Check Price on Amazon
Electrical contact cleaner
Check Price on Amazon
Ad

When to Call a Professional

Call a professional mechanic if you're uncomfortable working with electrical components, if the wiring issue extends to the engine control module, or if the problem persists after replacing the sensor and checking all wiring connections.

Frequently Asked Questions

What causes P0110 error code?
P0110 is typically caused by a faulty intake air temperature sensor, damaged wiring or connectors, corrosion in the electrical connections, or rarely, a problem with the engine control module.
Can I drive with P0110 code?
You can drive short distances with P0110, but the engine may run poorly with reduced performance and fuel economy. The engine control module will use default values, which may not be optimal for current conditions.
How much does it cost to fix P0110?
Repair costs range from $20-150 for a new IAT sensor, plus labor if professionally installed. If wiring repair is needed, costs may be higher depending on the extent of damage.
Will P0110 cause my car to fail inspection?
Yes, P0110 will typically cause your vehicle to fail emissions testing since it's an emissions-related diagnostic trouble code. The error must be resolved before passing inspection.