P0114
Fix within a few daysIntake Air Temperature Sensor Circuit Intermittent/Erratic
Code P0114 means your Intake Air Temperature sensor signal is erratic. Common causes: Faulty IAT sensor (65%), wiring issues (25%), connector problems (8%). Drivability: Yes, safe to drive. Repair cost: $20-$80 DIY, $100-$250 professional.
Can I Drive With P0114?
Yes, safe to drive
No restrictions, but fix for performance and fuel economy
Stop driving immediately if: Flashing CEL (indicates a severe misfire, not typical for P0114 alone), significant power loss, or engine overheating.
Symptoms of P0114
- 1Check Engine Light is on
- 2Reduced engine performance
- 3Poor fuel economy
- 4Rough idle
- 5Hard starting, especially when cold
Common Causes of P0114
Parts most likely causing this code, ranked by probability
The sensor itself is failing internally, sending inconsistent or incorrect temperature readings to the engine computer.
65% of P0114 cases are fixed by replacing this part
Frayed, corroded, or broken wires in the sensor's circuit cause intermittent signal loss or interference.
25% of P0114 cases are fixed by repairing this part
Poor electrical contact at the sensor plug leads to an erratic signal.
8% of P0114 cases are fixed by repairing or replacing this part
The engine computer is unable to correctly interpret the IAT sensor signal or has an internal fault.
2% of P0114 cases are fixed by replacing this part
Check These First (Before Buying Parts)
- Visually inspect the IAT sensor's electrical connector for corrosion, bent pins, or a loose fit.
- Inspect the wiring leading to the IAT sensor for any visible damage, fraying, or signs of rodent chewing.
How to Diagnose P0114
- 1Visually inspect the IAT sensor and its electrical connector for damage, corrosion, or loose connections.
- 2Check the IAT sensor wiring harness for any signs of fraying, cuts, or pinches from the sensor back to the engine computer.
- 3Using a multimeter, test the IAT sensor's resistance at various temperatures (if accessible) and compare to factory specifications.
- 4With a scan tool, monitor the IAT sensor live data. Look for sudden, illogical jumps or drops in temperature readings.
- 5If all visual and electrical checks pass, replace the IAT sensor.
P0114 on Popular Vehicles
Toyota Camry
2007-2024P0114 on these models is frequently resolved by replacing the IAT sensor, which is often part of the MAF sensor assembly. Corrosion at the MAF connector is also a known issue.
70% fixed by replacing the IAT/MAF sensor
Honda Accord
2003-2024For Accords, the IAT sensor is a common failure point. On many models, it's integrated into the MAF sensor. Inspect the MAF sensor and its connector carefully.
65% fixed by replacing the IAT/MAF sensor
Ford F-150
2004-2024P0114 on F-150s often points to a faulty IAT sensor, which is typically integrated into the MAF sensor. Check for vacuum leaks around the intake that could affect MAF readings, though less direct for P0114.
75% fixed by replacing the IAT/MAF sensor
Frequently Asked Questions
What does P0114 mean?
P0114 indicates that the engine computer is receiving an intermittent or erratic signal from the Intake Air Temperature (IAT) sensor. This means the computer cannot get a consistent reading of the air temperature entering the engine.
Can I drive with P0114?
Yes, you can drive safely with P0114. The engine will likely run with reduced performance and fuel economy, but it will not cause immediate damage or leave you stranded.
Will P0114 clear itself?
No, P0114 will not clear itself. The engine computer will continue to detect the erratic signal from the IAT sensor, keeping the Check Engine Light on until the underlying issue is resolved.
How do I fix P0114 myself?
Start by inspecting the IAT sensor connector and wiring for damage. If they look good, replace the IAT sensor. This is often a simple plug-and-play repair.
How much does it cost to fix P0114?
A DIY fix for P0114 typically costs $20-$80 for a new IAT sensor. Professional repair at a shop will cost $100-$250, including parts and labor.
P0114 keeps coming back - why?
If P0114 returns after replacing the sensor, the issue is likely in the wiring harness or the connector. Thoroughly inspect the entire circuit for corrosion, breaks, or loose pins. A rare cause is a faulty engine computer.
Will P0114 fail emissions/smog test?
Yes, P0114 will cause your vehicle to fail an emissions or smog test. The Check Engine Light being on is an automatic failure in most jurisdictions.
What's the difference between P0114 and P0113?
P0114 indicates an intermittent or erratic signal from the IAT sensor, meaning the signal is inconsistent. P0113 indicates a high input from the IAT sensor, meaning the signal is consistently too high, often interpreted as extremely cold air.
P0114 on Honda Accord?
On Honda Accords, P0114 is most commonly caused by a failing IAT sensor itself. The sensor is often integrated into the MAF sensor on newer models, so check both if applicable. Wiring issues are less common but still possible.
Questions to Ask Your Mechanic
Did you check the IAT sensor's live data for erratic readings, and did you test the wiring harness for continuity and resistance?
Good answer: Yes, we monitored the IAT sensor live data and saw the temperature readings jumping erratically. We also performed a wiggle test on the connector and wiring, and confirmed the sensor itself was faulty after testing its resistance.
Repair Cost Estimate
DIY Repair
Parts only
$20-$80
Shop Repair
Parts + labor
$100-$250
Save $80-$170 by doing it yourself
Difficulty
beginner
Time
0.5-1 hours
Beginner-friendly. The IAT sensor is typically easy to access and replace with basic hand tools. Testing with a multimeter and scan tool makes diagnosis more precise but isn't strictly required for a simple sensor swap.
Cost of Waiting
Ignoring P0114 will lead to continued poor fuel economy and reduced engine performance. The engine computer will operate with incorrect air temperature data, which can cause the engine to run too rich or too lean, potentially increasing harmful emissions and causing premature wear on other components like spark plugs or oxygen sensors over a long period.
While You're In There...
If the IAT sensor is located in the air intake tube or MAF sensor, replacing the air filter is a simple, inexpensive maintenance item that ensures optimal airflow and prevents future issues.
If the IAT sensor is integrated into the MAF sensor, cleaning the MAF sensor can resolve issues related to dirty sensor elements and restore accurate readings.
Tools You'll Need
- OBD-II Scan Tool
- Multimeter
- Basic hand tools (screwdriver, wrench/socket)
- Electrical contact cleaner (optional)
P0114 is a common sensor code that rarely indicates a serious engine problem. The repair is usually straightforward and inexpensive, restoring your engine's performance and fuel efficiency.
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Your Next Steps
Step 1: Visually inspect the IAT sensor's electrical connector and wiring for any obvious damage, corrosion, or loose connections. Clean the connector with electrical contact cleaner if needed.
Step 2: If the visual inspection doesn't reveal the problem, use a scan tool to monitor the IAT sensor's live data. Look for erratic temperature readings (sudden, illogical changes). If the readings are erratic or stuck, proceed to replace the IAT sensor.
Step 3: Parts you'll likely need: A new Intake Air Temperature (IAT) sensor. If your IAT sensor is integrated into the Mass Air Flow (MAF) sensor, you may need to replace the entire MAF sensor assembly.