| Table of Contents | |
| Possible Causes of P0113 & Their Repair Costs | P0113 is a diagnostic trouble code indicating that the engine control module has detected an unusually high voltage input from the intake air temperature (IAT) sensor circuit. |
| How to Diagnose the Cause of Your P0113 Code | A P0113 code is usually caused by a faulty intake air temperature (IAT) sensor, damaged wiring or connectors in the IAT sensor circuit, a dirty air filter, or, less frequently, a malfunctioning engine control module/powertrain control module. |
| Can I drive with a P0113 code? | Yes, you can drive for a short period with a P0113 code. However, addressing the issue promptly is best to avoid decreased performance, reduced fuel efficiency, and potential engine damage. |
| DIY | How To Fix P0113 Causes |
DIYable P0113 triggers include:
|
| P0113 Code FAQs |
Frequently asked questions:
|
When this code appears, it typically means the IAT sensor is reporting air temperatures that are lower than actual, which can lead to incorrect fuel mixture calculations and potentially affect engine performance and fuel economy.
Diagnostic trouble code (DTC) P0113: Intake Air Temperature (IAT) Sensor 1 Circuit High Input indicates that the engine control module (ECM) or powertrain control module (PCM) has detected an unusually high voltage input from the intake air temperature (IAT) sensor circuit. Specifically, the normal 4.91-volt measurement is exceeded for more than half a second. In this situation, the ECM/PCM. This can result in inaccurate air temperature readings, causing an incorrect fuel-to-air ratio, reduced fuel economy, and poor engine performance.
Most cars only have one IAT sensor, and some don’t have any standalone IAT sensors (we’ll expand on that shortly).
Related codes involving the IAT sensor include:
- P0110: Intake Air Temperature Sensor 1 Circuit Malfunction
- P0111: Intake Air Temperature Sensor 1 Circuit Range/Performance Problem
- P0112: Intake Air Temperature Sensor 1 Circuit Low Input (the opposite of P0113)
- P0114: Intake Air Temperature Sensor 1 Circuit Intermittent
A check engine light with an accompanying P0113 code is moderately serious. Driving for a week or two is acceptable, but delaying repairs beyond this point risks damaging the engine and catalytic converter. Importantly, don’t use the car if it hesitates or stalls, as these conditions can create a hazardous driving situation.
Keep reading for more insights about P0113 codes. We’ll cover the causes, symptoms, and vehicles most vulnerable to this issue.
Possible Causes of P0113 & Their Repair Costs
While a faulty intake air temperature sensor is often to blame for a P0113 code, it’s best to understand other possible causes. Remember that some vehicles have an IAT sensor integrated into the mass air flow (MAF) sensor.
Check out the FIXD article on the most common causes of check engine lights.
Here’s an overview of the most likely parts and systems that can cause a P0113 code and their average repair costs. Actual prices can depend on the vehicle and location.
P0113 Code Triggers & Typical Repair Costs
| Part To Repair | Part / DIY Price | Mechanic Total Cost |
| Intake Air Temperature (IAT) Sensor | $34–$43 | $99–$101 |
| IAT Sensor Harness/Wiring | $11–$24 | $47–$68 |
| Air Filter | $10–$44 | $49–$71 |
| IAT Sensor/Mass Air Flow (MAF) Sensor (for vehicles with an integrated IAT/MAF sensor): Clean | $20–$40 | $100–$200 |
| Mass Air Flow (MAF) Sensor (for vehicles with an integrated IAT/MAF sensor): Replace | $40–$50 | $239–$346 |
| Engine Control Module/Powertrain Control Module | $929–$978 | $1,006–$1,075 |
Here’s a brief look at how faulty parts trigger a P0113 code.
Parts Most Likely to Fail & Cause a P0113
| Parts that can cause P0113 | How it could cause P0113 |
| Defective Intake Air Temperature (IAT) Sensor | A faulty Intake Air Temperature (IAT) sensor can cause a P0113 code by providing an abnormally high voltage signal to the ECM/PCM. The ECM/PCM interprets this high voltage as an unrealistically low air temperature, triggering the P0113 code and potentially causing the engine to run rich due to incorrect fuel mixture calculations. |
| Faulty IAT Sensor Harness/Wiring | A broken IAT sensor harness can cause a P0113 code by creating an open circuit or a short to power in the wiring. This interruption or unintended voltage in the circuit can result in the ECM/PCM receiving an abnormally high voltage signal, which it interprets as a sensor malfunction, triggering the P0113 code. |
| Dirty Air Filter | A clogged air filter can cause the ECM/PCM to sense that there’s insufficient air entering the engine, resulting in a P0113 code. |
| Defective Engine Control Module / Powertrain Control Module | A malfunctioning ECM/PCM can misinterpret coolant temperature data, leading to improper engine temperature regulation even when the cooling system is functioning. This is an uncommon repair. |
Makes Commonly Affected By P0113
Code P0113 is no stranger to a variety of makes and models. According to FIXD sensor data, the worst is the Dodge Grand Caravan. The Charger and Ram 1500 follow it but with much lower occurrence ratings.
The Silverado 1500 is Chevrolet’s greatest offender for P0113 codes. The Equinox crossover and Malibu sedan complete the brand’s top three slots for this issue. Nissan’s leader for P0113 codes is the long-serving Altima, with the larger Maxima taking second place. The Pathfinder follows in third.
Many of Toyota’s best-sellers experience P0113-related troubles. The Camry tops the list with a high incident rating, followed by the Corolla, which has a medium level. The Sienna is the third most vulnerable Toyota.
The Blue Oval doesn’t avoid P0113 codes. The Escape, Mustang, and F-250 are the most likely Fords to have these issues. Interestingly, the F-150 is nowhere in sight for these problems. The data shows none of the trucks had P0113 codes.
| Top 5 Makes Affected by P0113 | Most Affected Model(s) |
Dodge | Grand Caravan |
| Charger | |
| Ram 1500 | |
Chevrolet | Silverado 1500 |
| Equinox | |
| Malibu | |
Nissan | Altima |
| Maxima | |
| Pathfinder | |
Toyota | Camry |
| Corolla | |
| Sienna | |
Ford | Escape |
Mustang | |
| F-250 |
How to Diagnose the Cause of Your P0113 Code
Diagnosing a check engine light starts with using an OBD-II scanner to identify what’s causing the issue. The FIXD plug-in sensor will show the code and likely causes on your phone via the accompanying FIXD app. You can also try a basic code reader with a cable to plug into the car’s OBD-II port. In truth, there are only a few things a novice DIYer can do to identify what triggered a P0113 code. You’ll want a flashlight, gloves, safety goggles, and a rag to get started. A more involved effort will require essential hand tools.
Safety Essentials
Before exploring the source of a P0113 code, you’ll want to observe the following:
- Park on a level surface in a safe area
- Ensure the car is off and the parking brake is engaged
- Allow the engine to cool if you’re going anywhere near the engine or exhaust system
The FIXD Live Data function can be vital for reviewing intake air temperature readings. Some other OBD II scanners may also have this feature. To begin, run the car for 5-10 minutes so the engine warms up. Dive into the live data to compare intake air temperature to coolant temperature. If everything runs correctly, the intake air temperature should be slightly cooler.
Symptoms of P0113 Causes
Numerous causes can trigger code P0113, so you’ll want to review each trouble spot. This starts with inspecting accessible components and observing any unusual conditions.
Symptoms:
- Check engine light
- Slow engine warm-up
- Lack of cabin heat
- Temperature gauge reading low
- Engine running cooler
- Fluctuating temperature readings
- Reduced fuel economy
- Engine performance issues
- Increased emissions
- Rich air-fuel mixture
- Hard starting, especially when cold
What to Inspect:
Locate the IAT sensor, typically near the air intake, and inspect it for damage. The same applies if your car uses a combination IAT sensor/MAF sensor.
Use the FIXD app or an OBD II scanner to compare IAT sensor data to coolant temperature (see above).
An advanced DIYer or a mechanic can use a multimeter to test the sensor’s resistance at different temperatures. Comparing these readings to the manufacturer’s specifications can determine whether the sensor functions correctly.
Symptoms:
- Check engine light
- Slow engine warm-up
- Lack of cabin heat
- Temperature gauge reading low
- Engine running cooler
- Fluctuating temperature readings
- Reduced fuel economy
- Engine performance issues
- Increased emissions
- Rich air-fuel mixture
- Hard starting, especially when cold
What to Inspect:
Check the wiring for signs of damage, corrosion, or loose connections. An experienced amateur or a professional mechanic can use a multimeter to test for continuity between the sensor connector and the ECM/PCM connector to ensure there are no breaks or short circuits in the wiring.
Symptoms:
- Check engine light
- Reduced fuel economy
- Increased emissions
- Engine performance issues
What to Inspect:
Open the air filter housing and inspect the air filter for dirt or build-up of debris. Check the adjacent areas for leaves and other accumulations.
Symptoms:
- Check engine light
- Slow engine warm-up
- Lack of cabin heat
- Temperature gauge reading low
- Engine running cooler
- Fluctuating temperature readings
- Reduced fuel economy
- Engine performance issues
- Difficulty starting the engine
- Incorrect idle speed
- Transmission shifting issues
- Multiple, seemingly unrelated error codes
What to Inspect:
Diagnosing a suspect ECM/PCM requires specialized tools and in-depth knowledge, making it a task that is best for professionals. However, if your vehicle displays a range of seemingly unconnected diagnostic trouble codes, it’s a strong indicator that the ECM/PCM itself might be the culprit rather than individual sensors or systems.
Can I drive with a P0113 code?
Quick answer: Yes, driving for a week or two with a P0113 code is usually fine. However, putting off repairs beyond this point is unwise.
Understand that driving with a P0113 code shouldn’t be a long-term option. You may experience reduced fuel economy and increased emissions, but there are worse potential consequences. Continued driving with this issue risks damaging the catalytic converter. Excess fuel in the air-fuel mixture, a side effect of the P0113-related problems, may not be consumed during combustion. This condition results in unburnt fuel entering the catalytic converter, contaminating its sensitive components. Internal engine damage is also a possibility.
Importantly, don’t drive with a P0113 code if the car is experiencing hesitation, stalling, or other reduced performance conditions. This could create a hazard on the highway or at an intersection.
Here’s an expanded look at driveability with a P0113 code.
| Causes | Can I Drive? | Risks / Safety / Performance |
|---|---|---|
|
Malfunctioning Intake Air Temperature Sensor |
You can drive briefly with a P0113 code, but it’s unwise to delay repairs, which may lead to decreased performance and potential engine damage. Address the issue promptly to avoid safety risks and costlier repairs. |
Continued driving with a P0113 code due to a bad IAT sensor risks engine damage from running a rich fuel mixture, potentially leading to a catalytic converter failure. Additionally, you may experience reduced fuel efficiency, poor engine performance, and increased emissions, which could result in failed emissions tests and more costly repairs over time. |
|
Faulty IAT Sensor Harness/Wiring |
You can drive briefly with a P0113 code, but it’s unwise to delay repairs, which may lead to decreased performance and potential engine damage. Address the issue promptly to avoid safety risks and costlier repairs. |
Driving with a P0113 code caused by faulty IAT sensor wiring can lead to erratic engine performance and potential stalling, posing safety risks. Prolonged operation may damage other electrical components or the ECM, resulting in more extensive and expensive repairs. |
|
Dirty Air Filter |
You can drive briefly with a P0113 code, but it’s unwise to delay repairs, which may lead to decreased performance and potential engine damage. Address the issue promptly to avoid safety risks and costlier repairs. |
A dirty air filter reduces airflow into the engine. The resulting rich fuel mixture (too much fuel, not enough air) can damage the catalytic converter and internal engine components. |
|
Malfunctioning Engine Control Module/Powertrain Control Module |
You can drive briefly with a P0113 code, but it’s unwise to delay repairs, which may lead to decreased performance and potential engine damage. Address the issue promptly to avoid safety risks and costlier repairs. |
A faulty CM/PCM can cause erratic engine performance, poor fuel efficiency, and unexpected stalling. Over time, improper timing and fuel management may damage various engine components. |
DIY | How To Fix P0113 Causes
For the most part, dealing with a P0113-related issue isn’t overly complex unless you suspect a troublesome engine control module (ECM) or powertrain control module (PCM). Leave ECM/PCM problems in the hands of a professional unless you’re very experienced under the hood (which is unlikely if you’re reading this article).
At the same point, tackling most other repairs for a P0113 code involves access and equipment. Swapping out a bad IAT sensor (or IAT/MAF combo sensor) is straightforward if it’s easy to get to and you have the right tools.
However, you shouldn’t assume the IAT sensor is always to blame. The correct process is to diagnose if the sensor is bad (see above) before replacing it. Not everyone has the skill or equipment (although multimeters aren’t expensive).
With this in mind, we’ll focus on two more straightforward DIY repairs.
Possible Cause: Clogged Air Filter
What is it?
A clogged or dirty air filter reduces the oxygen needed for the correct air-to-fuel ratio and proper combustion.
How hard is it to fix?
Difficulty Level: Easy
Most car owners should know how to change the engine air filter. The filter is in the cold air collector box, which is easy to access in most cars. Just open the collector box, replace the dirty filter with a new one, and securely close the unit. It never hurts to upgrade to a premium filter, which can help improve performance and fuel economy.
Cost of Repairs
A new air filter costs $10–$44. Most cold air collector boxes are opened via toolless clamps, but simple handle tools may be required for some cars.
Possible Cause: Dirty IAT Sensor
What is it?
An IAT sensor measures the temperature of incoming air to help the ECM/PCM optimize fuel mixture and ignition timing. A dirty IAT sensor can produce incorrect readings.
How hard is it to fix?
Difficulty Level: Moderate
The IAT sensor (or an IAT/MAF combination sensor) is generally easy to reach in most cars. However, care must be taken to avoid damage when removing the unit. Don’t touch the sensor wires (they look like light bulb filaments). Inspect the sensor for dirt or grime build-up. If needed, spray a MAF sensor cleaner (even if you’re only cleaning an IAT sensor) and reinstall the sensor. Don’t use anything else. A carburetor cleaner, for instance, can damage plastic.
Cost of Repairs
MAF sensor cleaner spray and supplies cost $20 to $40.
Before dealing with any code P0113-related repair, check whether your car is under warranty. You can save money by letting the automaker handle the work. In addition, research if there are any technical service bulletins (TSBs) for your car. TSBs are official repair/correction notices issued by the manufacturer that cover specific problem areas. You can research this online or contact a dealer.
P0113 Code FAQs
What makes and models does code P0113 affect the most?
Here’s a breakdown of the vehicles most affected by code P0113, according to FIXD sensor data collected in 2023.
| Make | Model | Occurrence Frequency |
| Toyota | Camry | High |
| Nissan | Altima | High |
| Chevrolet | Silverado 1500 | High |
| Dodge | Grand Caravan | High |
| Toyota | Corolla | Medium |
| Jeep | Grand Cherokee | Medium |
| Chevrolet | Equinox | Medium |
| Chevrolet | Malibu | Medium |
| Dodge | Charger | Medium |
What causes code P0113?
Code P0113 is typically caused by a malfunctioning intake air temperature (IAT) sensor or issues with its wiring. This can include a faulty IAT sensor, damaged or corroded wiring in the sensor circuit, or a poor connection between the sensor and the engine control module. Sometimes, a dirty or clogged air filter can also be at the root of the issue. In rare cases, it may also be due to a problem with the engine control module/powertrain control module.
How can I prevent a P0113 code from happening?
Regular maintenance of your vehicle’s air intake system can help prevent P0113 codes. This includes replacing the air filter as recommended, inspecting wiring connections for corrosion or damage, and ensuring the IAT sensor is clean and properly seated. Additionally, promptly addressing engine performance issues can prevent strain on sensors and electrical components.
What does the code “P0113 Dodge” mean?
Manufacturer references don’t accompany diagnostic trouble codes (DTCs). So, P0113 could occur in a Dodge, Ford, Toyota, or just about any vehicle with a gas or diesel engine. The FIXD app or a conventional code reader shows the DTC without any supplementary information about the car’s make; you won’t see “P0113 Dodge,” just “P0113.
References:
Repair-cost estimates, repairpal.com (various dates). Retrieved September 24, 2024, from repairpal.com.
Dave Goldberg is an automotive journalist and lifelong car fanatic. He writes for numerous enthusiast and business outlets and is an ongoing contributor to HotCars.com, one of the most popular car culture websites. When he’s not writing or driving, Dave is either under a hood or asleep. His credentials include a BA in Journalism from The George Washington University.
