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 computer in your car is having trouble reading a sensor that checks how much pollution your car is making. It's like a thermometer that isn't working right, so it can't tell you the temperature.
The NOx sensor measures the levels of nitrogen oxides in the exhaust gas. This code indicates that the processor for the NOx sensor on bank 1, sensor 1 is not performing as expected.
The P06EA code is triggered when the Engine Control Module (ECM) detects a performance issue with the NOx sensor processor on bank 1, sensor 1. This sensor is responsible for monitoring the amount of nitrogen oxides in the exhaust to ensure the vehicle is within emission standards.
• Check Engine Light illuminated
• Decreased fuel efficiency
• Possible engine performance issues
• Faulty NOx sensor
• Wiring issues or poor connections
• Failed NOx sensor processor
NOx Sensor: A sensor that detects nitrogen oxides in the exhaust gases.
Bank 1: Refers to the side of the engine with cylinder number one.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the NOx sensor.
• Test the NOx sensor for proper operation.
• Replace the NOx sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the NOx sensor processor if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Volkswagen Jetta
• Audi A3
• BMW 3 Series
• Regular vehicle maintenance
• Use high-quality fuel
• Ensure timely replacement of sensors
Sensor Issue
• Regularly check for engine warning lights.
• Schedule routine maintenance checks.
• Consult a professional if unfamiliar with vehicle repairs.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has become more common with the increased use of NOx sensors in modern vehicles to meet stringent emission standards.
Moderate – While the vehicle may still be drivable, addressing the issue is important to maintain emission compliance and fuel efficiency.
Driving with a faulty NOx sensor can lead to increased emissions, which may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle driven under normal conditions
The NOx sensor is typically located in the exhaust system, close to the catalytic converter.
Q: Can I drive with a P06EA code?
A: You can drive with this code, but it is advisable to fix it soon to avoid increased emissions and potential engine performance issues.
Q: How do I reset the P06EA code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the code should not return.
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Universal · Digital multimeter
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Universal · Wire connectors and repair kit
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 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.