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 is noticing that the oxygen sensor on one side of the engine is not working as quickly as it should. It's like when someone is slow to respond when you call their name.
The oxygen sensor in the exhaust system is taking too long to respond to changes in the air-fuel mixture, which can affect engine performance.
P0153 indicates that the oxygen sensor located on Bank 2, Sensor 1, is not switching (responding) as fast as expected by the engine control module (ECM). This sensor is responsible for monitoring the oxygen levels in the exhaust gases to help the ECM adjust the air-fuel mixture for optimal combustion.
• Check Engine Light is on
• Poor fuel economy
• Rough engine idle
• Increased emissions
• Faulty oxygen sensor
• Wiring issues or poor connections
• Exhaust leaks
• Contaminated sensor
• ECM issues
OBD-II: On-Board Diagnostics II, a standardized system for vehicle self-diagnostics and reporting.
ECM: Engine Control Module, the computer that manages the engine's operation.
• Scan the vehicle for codes and note any related codes.
• Inspect the wiring and connections to the oxygen sensor for damage.
• Check for exhaust leaks near the sensor.
• Test the oxygen sensor's response time with a multimeter or scan tool.
• Replace the faulty oxygen sensor.
• Repair or replace damaged wiring or connectors.
• Fix any exhaust leaks.
• Clean or replace a contaminated sensor.
• OBD-II scanner
• Multimeter
• Wrench set
• Screwdriver set
$150 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain the exhaust system.
• Use high-quality fuel to prevent sensor contamination.
• Perform routine vehicle maintenance.
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving long distances until the issue is resolved.
Check if the vehicle's emission system is still under warranty, as some components may be covered for extended periods.
P0153 has been a common code since the introduction of OBD-II systems in the mid-1990s, often related to aging or faulty oxygen sensors.
Moderate – While the vehicle may still be drivable, it can lead to increased emissions and reduced fuel efficiency.
Driving with a faulty oxygen sensor may lead to failing emissions tests and increased pollution.
• Engine at operating temperature
• Vehicle driven under various conditions
The oxygen sensor for Bank 2 Sensor 1 is located in the exhaust manifold or pipe before the catalytic converter on the side of the engine opposite cylinder 1.
Q: Can I drive with a P0153 code?
A: While you can drive with this code, it's not recommended as it can lead to poor fuel economy and increased emissions.
Q: How do I know if my oxygen sensor is bad?
A: Signs of a bad oxygen sensor include a check engine light, poor fuel economy, and rough engine idle.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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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.