P0098 Code: IAT Sensor 2 Circuit High (Bank 1)

P0098 is a diagnostic trouble code related to one of your vehicle’s intake air temperature sensors. Here is some basic information that can help you understand the common triggers and symptoms associated with this code.

What Does the P0098 Code Mean?

Diagnostic Trouble Code (DTC) P0098 stands for “IAT Sensor 2 Circuit High (Bank 1).” This code is logged once the PCM detects a possible issue in the intake air temperature (IAT) sensor #2. It is set when the PCM detects a signal voltage that’s higher than the manufacturer-specified range for sensor #2.

The IAT sensor measures the temperature of the air entering the vehicle’s engine. This device is equipped with an internal thermistor that measures air temperature and sends voltage signals to the PCM.

Read our technical discussion about the IAT sensor and how it can trigger codes like P0098 to get more information that can help you fix the issue.

Note: The definition of code P0098 may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Possible Causes of the P0098 Code?

Here are the possible triggers of the P0098 code:

• Malfunctioning IAT sensor # 2
• Wiring issues
• Malfunctioning PCM

What are the Common Symptoms of a P0098 Code?

Here are some symptoms related to the code:

• Illuminated check engine light
• Decreased engine performance
• Decreased fuel economy

In most cases, this trouble code may not cause any drivability issue.

How to Diagnose the P0098 Code

If you don’t have extensive experience in auto repair, we advise bringing your vehicle to an auto shop. A mechanic would be able to identify underlying issues that may have triggered the code or caused it to be logged in error.

If you’re a seasoned automotive DIYer who wants to troubleshoot this code yourself, we recommend consulting vehicle-specific repair manuals and/or online repair databases. These resources contain helpful information on the diagnostic procedures that may work for your vehicle.

How to Fix the P0098 Code

There are no guaranteed easy fixes for DTCs, and the same applies to problems related to a code P0098. This is because engine and vehicle specifications may vary per manufacturer. Repair steps that may work for a P0098 on a Ford may not work for a P0098 on a Honda. Always consult the appropriate repair manual or subscribe to an online repair database to learn more about the proper repair procedure.

Get Vehicle Parts After a Triggered P0098 Code

A bad IAT sensor can trigger the P0098 code and cause decreased engine performance and efficiency. This might not be a major concern, but it can snowball into larger issues in the long run. You shouldn’t ignore a bad IAT sensor. Luckily, here at CarParts.com, you’ll be able to find the right replacement IAT sensor for your vehicle with just a few clicks.

CarParts.com has a great selection of parts that aren’t limited to IAT sensors. Choose from a wide range of parts and accessories for various vehicle systems. Whatever part you pick, you can be confident that it’ll fit properly and perform reliably. All our parts are sourced from leading aftermarket manufacturers and have passed stringent quality control standards.

Whatever parts you choose, you can rest assured that they’ll last. What are you waiting for? Enjoy our deals on IAT sensors here at CarParts.com today!