Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks there's too much air and not enough fuel in the exhaust after the catalytic converter on one side of the engine.
The engine control module (ECM) detects that the oxygen sensor after the catalytic converter is reading a lean condition, indicating too much air and not enough fuel in the exhaust gases.
The P2098 code is triggered when the ECM detects that the post-catalyst oxygen sensor on Bank 2 is indicating a lean condition. This could be due to a malfunctioning sensor, exhaust leak, or issues with the fuel system. The ECM uses this sensor to monitor the efficiency of the catalytic converter and adjust fuel trim accordingly.
• Check Engine Light is on
• Poor fuel economy
• Rough idle
• Reduced engine performance
• Faulty oxygen sensor
• Exhaust leak
• Fuel injector issues
• Vacuum leaks
• Faulty catalytic converter
ECM: Engine Control Module
Oxygen Sensor: A sensor that measures the amount of oxygen in the exhaust gases
Catalytic Converter: A device that reduces harmful emissions from the engine
• Use an OBD-II scanner to confirm the code.
• Inspect the oxygen sensor and wiring for damage.
• Check for exhaust leaks before the sensor.
• Inspect fuel injectors and vacuum lines for leaks.
• Replace the faulty oxygen sensor.
• Repair any exhaust leaks.
• Fix or replace faulty fuel injectors.
• Repair vacuum leaks.
• OBD-II scanner
• Wrench set
• Vacuum gauge
• Multimeter
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and replace oxygen sensors.
• Perform routine maintenance on the exhaust system.
• Ensure fuel system components are clean and functioning.
Engine Performance
• Get the vehicle inspected as soon as possible to avoid further damage.
• Monitor fuel economy and performance for any changes.
Oxygen sensors and catalytic converters may be covered under emissions warranty.
This code has been commonly associated with vehicles that have high mileage or have not had regular maintenance.
Moderate – Address the issue to prevent potential damage to the catalytic converter.
Driving with a lean condition can lead to increased emissions and potential damage to the catalytic converter.
• Engine at operating temperature
• Vehicle at idle and under load conditions
The oxygen sensor is located in the exhaust system after the catalytic converter on Bank 2.
Q: Can I drive with a P2098 code?
A: While you can drive with this code, it's best to fix it soon to avoid potential damage to the catalytic converter.
Q: How do I know which side is Bank 2?
A: Bank 2 is the side of the engine that does not contain cylinder 1. Refer to your vehicle's service manual for specifics.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.