OBD-II Generic Error Code P0098: How to Fix IAT Sensor 2 Circuit High

Q: What is IAT Sensor 2 and where is it located?

The Intake Air Temperature (IAT) Sensor 2 measures air temperature after the turbocharger or intercooler. It is typically located in the intake duct or intake manifold.

Q: Can I drive with error code P0098?

Yes, but you may notice reduced fuel economy and performance. It's best to fix it promptly to avoid potential engine damage.

Q: How much does it cost to fix P0098?

Replacing an IAT sensor costs $20-$50 for the part, plus labor if done by a shop (typically $50-$100). DIY is much cheaper.

Q: Will clearing the code make it go away permanently?

No, clearing the code only removes the error from memory. If the underlying issue isn't fixed, the code will return.

Q: What tools do I need to fix P0098?

You'll need an OBD2 scanner, a digital multimeter, and basic hand tools like a socket set and screwdrivers.

Abstract

Error code P0098 indicates that the Intake Air Temperature (IAT) Sensor 2 is reporting a voltage higher than expected, which can cause poor engine performance and reduced fuel economy. This guide will help you diagnose and fix the issue step by step.