P2098 2017 Chevrolet Silverado Code - Post Catalyst Fuel Trim System Low Limit Bank 2

This code, "Post Catalyst Fuel Trim System Low Limit Bank 2," indicates that the fuel trim on bank 2 after the catalytic converter is operating below the specified limit.

Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and the illumination of the check engine light.

Potential causes include a faulty oxygen sensor, exhaust leaks, issues with the catalytic converter, fuel system problems, or a malfunctioning engine control module.

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensors and catalytic converter, checking for exhaust leaks, and testing the fuel system.

It is not recommended to ignore this code, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter. It's best to address the issue promptly.

Repair options may include replacing the oxygen sensor, fixing any exhaust leaks, repairing or replacing the catalytic converter, addressing fuel system issues, or reprogramming the engine control module.

While you can clear the code with an OBDII scanner, the check engine light is likely to reappear if the root cause of the problem is not resolved.

Regular maintenance, such as timely replacement of oxygen sensors, checking for exhaust leaks, and using quality fuel, can help prevent issues that may trigger this trouble code.

Depending on your skill level and access to tools, some repairs related to this code can be tackled by DIY enthusiasts. However, complex issues or component replacements may require professional assistance.

The repair time can vary based on the specific cause of the code and the complexity of the fix. It could range from a quick sensor replacement to a more involved repair like replacing the catalytic converter, which may take longer.